🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:
Response:
Calculated Shard: 122 (from laksa126)

2. Crawled Status Check

Query:
Response:

3. Robots.txt Check

Query:
Response:

4. Spam/Ban Check

Query:
Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

🚫
NOT INDEXABLE
✅
CRAWLED
5 months ago
🤖
ROBOTS ALLOWED

Page Info Filters

FilterStatusConditionDetails
HTTP statusPASSdownload_http_code = 200HTTP 200
Age cutoffPASSdownload_stamp > now() - 6 MONTH5.9 months ago
History dropPASSisNull(history_drop_reason)No drop reason
Spam/banPASSfh_dont_index != 1 AND ml_spam_score = 0ml_spam_score=0
CanonicalFAILmeta_canonical IS NULL OR = '' OR = src_unparsedcom,merriam-webster!www,/dictionary/Brownian%20motion s443

Page Details

PropertyValue
URLhttps://www.merriam-webster.com/dictionary/brownian%20motions
Last Crawled2025-10-10 08:30:49 (5 months ago)
First Indexed2018-11-26 07:09:08 (7 years ago)
HTTP Status Code200
Meta TitleBROWNIAN MOTIONS Definition & Meaning - Merriam-Webster
Meta DescriptionThe meaning of BROWNIAN MOTION is a random movement of microscopic particles suspended in liquids or gases resulting from the impact of molecules of the surrounding medium —called also Brownian movement.
Meta Canonicalcom,merriam-webster!www,/dictionary/Brownian%20motion s443
Boilerpipe Text
“Brownian motion.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/Brownian%20motion. Accessed 10 Oct. 2025.
Markdown
[Chatbot](https://www.merriam-webster.com/chatbot) - [Chatbot](https://www.merriam-webster.com/chatbot) - [Games](https://www.merriam-webster.com/games) - [Word of the Day](https://www.merriam-webster.com/word-of-the-day) - [Grammar](https://www.merriam-webster.com/grammar) - [Word Finder](https://www.merriam-webster.com/wordfinder) - [Slang](https://www.merriam-webster.com/slang) - New [Newsletters](https://www.merriam-webster.com/newsletters) - [Wordplay](https://www.merriam-webster.com/wordplay) - [Rhymes](https://www.merriam-webster.com/rhymes) - [Thesaurus](https://www.merriam-webster.com/thesaurus) - [Join MWU](https://premium.britannica.com/mw-unabridged/?utm_source=mw&utm_medium=global-nav-join&utm_campaign=evergreen) - More - [Games](https://www.merriam-webster.com/games) - [Word of the Day](https://www.merriam-webster.com/word-of-the-day) - [Grammar](https://www.merriam-webster.com/grammar) - [Wordplay](https://www.merriam-webster.com/wordplay) - [Slang](https://www.merriam-webster.com/slang) - [Rhymes](https://www.merriam-webster.com/rhymes) - [Word Finder](https://www.merriam-webster.com/wordfinder) - [Newsletters New](https://www.merriam-webster.com/newsletters) - [Thesaurus](https://www.merriam-webster.com/thesaurus) - [Join MWU ![link icon](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/link-icon.svg)](https://premium.britannica.com/mw-unabridged/?utm_source=mw&utm_medium=global-nav-join&utm_campaign=evergreen) - Shop - [Books ![link icon](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/link-icon.svg)](https://shop.merriam-webster.com/?utm_source=mwsite&utm_medium=nav&utm_content=header) - [Merch ![link icon](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/link-icon.svg)](https://merriamwebster.threadless.com/?utm_source=mwsite&utm_medium=nav&utm_content=header) - [Log In](https://www.merriam-webster.com/login) - Username - [My Words](https://www.merriam-webster.com/saved-words) - [Recents](https://www.merriam-webster.com/recents) - [Account](https://www.merriam-webster.com/settings) - [Log Out](https://www.merriam-webster.com/logout) Est. 1828 [Dictionary](https://www.merriam-webster.com/dictionary/brownian%20motions) - [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/sidebar-nav-item-icon.svg) Definition ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/ribben.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions#dictionary-entry-1) - [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/sidebar-nav-item-icon.svg) Definition ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/ribben.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions#dictionary-entry-1) - [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/sidebar-nav-item-icon.svg) Example Sentences ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/ribben.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions#examples) - [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/sidebar-nav-item-icon.svg) Word History ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/ribben.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions#word-history) - [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/sidebar-nav-item-icon.svg) Rhymes ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/ribben.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions#related-rhymes) - [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/sidebar-nav-item-icon.svg) Entries Near ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/ribben.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions#nearby-entries) - - [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/sidebar-nav-item-icon.svg) Cite this EntryCitation ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/ribben.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions#citations) - [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/sidebar-nav-item-icon.svg) Share ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/ribben.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions#social-links) - [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/sidebar-nav-item-icon.svg) Kids DefinitionKids ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/ribben.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions#kidsdictionary) - [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/sidebar-nav-item-icon.svg) Medical DefinitionMedical ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/ribben.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions#medicalDictionary) - [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/sidebar-nav-item-icon.svg) More from M-W ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/ribben.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions#more-from-mw) [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/dots.svg) Show more![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/show-more-arrow.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions) - [Show more![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/show-more-arrow.svg)](https://www.merriam-webster.com/dictionary/brownian%20motions) - [Citation](https://www.merriam-webster.com/dictionary/brownian%20motions#citations) - [Share](https://www.merriam-webster.com/dictionary/brownian%20motions#social-links) - [Kids](https://www.merriam-webster.com/dictionary/brownian%20motions#kidsdictionary) - [Medical](https://www.merriam-webster.com/dictionary/brownian%20motions#medicalDictionary) - [More from M-W](https://www.merriam-webster.com/dictionary/brownian%20motions#more-from-mw) - Save Word ![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/save-word-flag-icon.svg) - To save this word, you'll need to log in. [Log In](https://www.merriam-webster.com/login) # Brownian motion ## [noun](https://www.merriam-webster.com/dictionary/noun) Brown·​ian motion [ˈbrau̇-nē-ən- ![How to pronounce Brownian motion (audio)](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/audio-pron-redesign.svg)](https://www.merriam-webster.com/dictionary/Brownian%20motion?pronunciation&lang=en_us&dir=b&file=browni01 "How to pronounce Brownian motion (audio)") **:** a random movement of microscopic particles suspended in liquids or gases resulting from the impact of molecules of the surrounding medium called also Brownian movement ## Examples of *Brownian motion* in a Sentence Recent Examples on the Web Examples are automatically compiled from online sources to show current usage. [Read More](https://www.merriam-webster.com/dictionary/brownian%20motions) Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. [Send us feedback](https://docs.google.com/forms/d/1GAQr3Kn1cURCVHUA82hAga1Wv8DCH0IuqDLRUrOpN7M/viewform?ts=63f4f653&entry.1515682415=https://www.merriam-webster.com/dictionary%2FBrownian%20motion). What looks like *Brownian motion*, random and chaotic, is in fact as efficient a system of transportation as there is. —![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/mdash-gold.svg)Bryan C. Donohue, *Baltimore Sun*, 17 Apr. 2024 But another is that at galactic scales, the acceleration due to gravity can vary by a small but random amount, as if spacetime were eliciting some kind of *Brownian motion* on the masses within it. —![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/mdash-gold.svg)The Physics Arxiv Blog, *Discover Magazine*, 11 Mar. 2024 But there’s another kind of movement available in liquids that has rarely been considered for this purpose—molecular thermal motion or *Brownian motion*. —![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/mdash-gold.svg)*IEEE Spectrum*, 27 Oct. 2023 Brown noise gets its name not from the color, but because it’s produced by a type of random movement known as *Brownian motion*. —![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/mdash-gold.svg)Samantha Vincenty, *SELF*, 12 Aug. 2022 ## Word History Etymology Robert *Brown* †1858 Scottish botanist First Known Use 1849, in the meaning defined [above](https://www.merriam-webster.com/dictionary/brownian%20motions#h1) Time Traveler The first known use of *Brownian motion* was in 1849 [See more words from the same year](https://www.merriam-webster.com/time-traveler/1849?src=defrecirc-timetraveler-etycard) ## Rhymes for *Brownian motion* - [locomotion](https://www.merriam-webster.com/dictionary/locomotion) - [commotion](https://www.merriam-webster.com/dictionary/commotion) - [demotion](https://www.merriam-webster.com/dictionary/demotion) - [devotion](https://www.merriam-webster.com/dictionary/devotion) - [emotion](https://www.merriam-webster.com/dictionary/emotion) - [laotian](https://www.merriam-webster.com/dictionary/laotian) - [promotion](https://www.merriam-webster.com/dictionary/promotion) - [lotion](https://www.merriam-webster.com/dictionary/lotion) - [notion](https://www.merriam-webster.com/dictionary/notion) - [ocean](https://www.merriam-webster.com/dictionary/ocean) - [potion](https://www.merriam-webster.com/dictionary/potion) [See All Rhymes for *Brownian motion*](https://www.merriam-webster.com/rhymes/perfect/brownian%20motion) ## Browse Nearby Words [brown hyena](https://www.merriam-webster.com/dictionary/brown%20hyena) Brownian motion [brownie](https://www.merriam-webster.com/dictionary/brownie) [See all Nearby Words](https://www.merriam-webster.com/browse/dictionary/b/61) ## Cite this Entry Style “Brownian motion.” *Merriam-Webster.com Dictionary*, Merriam-Webster, https://www.merriam-webster.com/dictionary/Brownian%20motion. Accessed 10 Oct. 2025. [![](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/redesign/copy-icon.svg)Copy Citation](https://www.merriam-webster.com/dictionary/brownian%20motions) ## Share ## Kids Definition Brownian motion noun Brown·​ian motion [ˌbrau̇-nē-ən- ![How to pronounce Brownian motion (audio)](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/audio-pron-redesign.svg)](https://www.merriam-webster.com/dictionary/Brownian%20motion?pronunciation&lang=en_us&dir=b&file=browni01 "How to pronounce Brownian motion (audio)") **:** a random movement of microscopic particles in liquids or gases that results from collisions with molecules of the fluid surrounding the particles called also Brownian movement Etymology named for Robert *Brown* 1773–1858 Scottish scientist ## Medical Definition Brownian motion noun Brown·​ian motion [ˌbrau̇-nē-ən- ![How to pronounce Brownian motion (audio)](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/audio-pron-redesign.svg)](https://www.merriam-webster.com/dictionary/Brownian%20motion?pronunciation&lang=en_us&dir=b&file=browni01 "How to pronounce Brownian motion (audio)") **:** a random movement of microscopic particles suspended in liquids or gases resulting from the impact of molecules of the fluid surrounding the particles called also Brownian movement ## More from Merriam-Webster on *Brownian motion* Britannica.com: [Encyclopedia article about *Brownian motion*](https://www.britannica.com/EBchecked/topic/81815/Brownian-motion) Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free\! [Merriam-Webster unabridged](https://premium.britannica.com/mw-unabridged/?utm_source=mw&utm_medium=inline-def&utm_campaign=evergreen) ## More from Merriam-Webster [![Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.](https://merriam-webster.com/assets/mw/static/images/games/external/quordle/485x364@1x.jpg) Can you solve 4 words at once? Play Play Can you solve 4 words at once? Play Play](https://www.merriam-webster.com/games/quordle/) #### [Word of the Day](https://www.merriam-webster.com/word-of-the-day) #### [obviate](https://www.merriam-webster.com/word-of-the-day) [![Listen to the pronunciation of obviate](https://www.merriam-webster.com/dist-cross-dungarees/2025-10-09--16-32-52-u36ur/images/svg/audio.svg)]("Listen to the pronunciation of obviate") [See Definitions and Examples](https://www.merriam-webster.com/word-of-the-day) » Get Word of the Day daily email\! ## Popular in Grammar & Usage [See More](https://www.merriam-webster.com/grammar) ['Affect' vs. 'Effect'](https://www.merriam-webster.com/grammar/affect-vs-effect-usage-difference) [Using Bullet Points ( • )](https://www.merriam-webster.com/grammar/how-to-use-bullet-points) [The Difference Between 'i.e.' and 'e.g.'](https://www.merriam-webster.com/grammar/ie-vs-eg-abbreviation-meaning-usage-difference) [Democracy or Republic: What's the difference?](https://www.merriam-webster.com/grammar/democracy-and-republic) [Your vs. You're: How to Use Them Correctly](https://www.merriam-webster.com/grammar/your-vs-youre-how-to-use-them-correctly) [See More](https://www.merriam-webster.com/grammar) ## Popular in Wordplay [See More](https://www.merriam-webster.com/wordplay) [Great Big List of Beautiful and Useless Words, Vol. 3](https://www.merriam-webster.com/wordplay/beautiful-useless-obscure-words-volume-3) [8 Real (and Perceived) Redundant Words](https://www.merriam-webster.com/wordplay/redundancies) [Birds Say the Darndest Things](https://www.merriam-webster.com/wordplay/words-birds-seem-to-say) [Even More Bird Names that Sound Like Insults (and Sometimes Are)](https://www.merriam-webster.com/wordplay/even-more-bird-name-insults) [Better Ways to Say 'This Sucks'](https://www.merriam-webster.com/wordplay/that-sucks-vocabulary-replacements) [See More](https://www.merriam-webster.com/wordplay) ## Popular [See More](https://www.merriam-webster.com/wordplay) ['Affect' vs. 'Effect'](https://www.merriam-webster.com/grammar/affect-vs-effect-usage-difference) [Great Big List of Beautiful and Useless Words, Vol. 3](https://www.merriam-webster.com/wordplay/beautiful-useless-obscure-words-volume-3) [8 Real (and Perceived) Redundant Words](https://www.merriam-webster.com/wordplay/redundancies) [See More](https://www.merriam-webster.com/wordplay) ## Games & Quizzes [See All](https://www.merriam-webster.com/games) [![Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.](data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==) Quordle Can you solve 4 words at once? Play](https://www.merriam-webster.com/games/quordle/) [![Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.](data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==) Blossom Pick the best words! Play](https://www.merriam-webster.com/games/blossom-word-game) [![Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?](data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==) The Missing Letter A daily crossword with a twist Play](https://www.merriam-webster.com/games/missing-letter) [![vintage ad illustration of a smiling woman](data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==) Brand Name Vocabulary Quiz You’re gonna need some moxie to ace this quiz Take the quiz](https://www.merriam-webster.com/games/brand-quiz) [See All](https://www.merriam-webster.com/games) [Merriam Webster](https://www.merriam-webster.com/) Learn a new word every day. Delivered to your inbox\! - [Help](https://www.merriam-webster.com/help) - [About Us](https://www.merriam-webster.com/about-us) - [Advertising Info](https://www.merriam-webster.com/advertising) - [Contact Us](https://www.merriam-webster.com/contact-us) - [Privacy Policy](https://www.merriam-webster.com/privacy-policy) - [Terms of Use](https://www.merriam-webster.com/terms-of-use) - [Facebook](https://www.facebook.com/merriamwebster) - [Twitter](https://twitter.com/merriamwebster) - [YouTube](https://www.youtube.com/user/MerriamWebsterOnline) - [Instagram](https://www.instagram.com/merriamwebster/) © 2025 Merriam-Webster, Incorporated
Readable Markdownnull
Shard122 (laksa)
Root Hash12021194709005532322
Unparsed URLcom,merriam-webster!www,/dictionary/brownian%20motions s443