nano·​bot | \ ˈna-nō-ˌbät How to pronounce nanobot (audio) \
plural nanobots

Definition of nanobot

: a microscopically small robot : a robot built on the scale of nanometers Many newspaper articles about nanotechnology seem obsessed with the idea of nanobots, itty bitty robots that dash about doing useful tasks and maybe (just maybe) getting out of control and destroying the world …— Pat Murphy Another technology that will greatly enhance the realism of virtual reality is nanobots: miniature robots the size of blood cells that travel through the capillaries of our brains and communicate with biological neurons.— Ray Kurzweil In one section of the book, [Eric] Drexler speculates about what could happen if we created self-reproducing "nanobots."— Keith Veronese

First Known Use of nanobot

1989, in the meaning defined above

History and Etymology for nanobot

nano- + bot entry 1

Buying Guide

Our Reviews team has selected the best Google home devices.

Learn More About nanobot

Time Traveler for nanobot

Time Traveler

The first known use of nanobot was in 1989

See more words from the same year

Dictionary Entries Near nanobot




See More Nearby Entries 

Statistics for nanobot

Cite this Entry

“Nanobot.” Dictionary, Merriam-Webster, Accessed 24 Sep. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on nanobot

Britannica English: Translation of nanobot for Arabic Speakers

Test Your Vocabulary

The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
Spell It

Can you spell these 10 commonly misspelled words?

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!