noun (1)
\ ˈbät How to pronounce bot (audio) \

Definition of bot

 (Entry 1 of 3)

1 : robot Bennett's referring to … a new police robot. It looks similar to the Albuquerque Bomb Squad robot next to it—both have cameras, an articulated arm, a mechanical gripper, and tank-like treads. But Benett's bot is different; it has brains.Popular Science
2a : a computer program that performs automatic repetitive tasks : agent sense 5 Several shopping "bots" will track down prices for on-line merchandise from a variety of vendors.— Sam Vincent Meddis especially : one designed to perform a malicious action These bot programs churn away all day and night, prodding at millions of random IP addresses looking for holes to crawl through. — Jennifer Tanaka
b : a computer that has been infected with a bot and can be used for malicious purposes as part of a network of infected computers These proxies then sent instructions to worker bots in set patterns, including templates for spam creation.— Jeff Hecht
3 : a computer program or character (as in a game) designed to mimic the actions of a person


noun (2)
variants: or less commonly bott

Definition of bot (Entry 2 of 3)

: the larva of a botfly especially : one infesting the horse

Definition of bot (Entry 3 of 3)

1 botanical; botanist; botany
2 bottle
3 bottom
4 bought

First Known Use of bot

Noun (1)

1969, in the meaning defined at sense 1

Noun (2)

15th century, in the meaning defined above

History and Etymology for bot

Noun (1)

by shortening

Noun (2)

Middle English; akin to Dutch leverbot liver fluke

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Time Traveler for bot

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The first known use of bot was in the 15th century

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Cite this Entry

“Bot.” Dictionary, Merriam-Webster, Accessed 19 May. 2022.

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More Definitions for bot


variants: also bott \ ˈbät How to pronounce bot (audio) \

Medical Definition of bot

 (Entry 1 of 2)

: the larva of a botfly especially : one infesting the horse



Medical Definition of bot (Entry 2 of 2)

1 botanical; botanist; botany
2 bottle

More from Merriam-Webster on bot

Nglish: Translation of bot for Spanish Speakers

Britannica English: Translation of bot for Arabic Speakers Encyclopedia article about bot


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