nanobot

[nan-uh-bot]
noun
  1. a machine or robot built on the nanoscale, still in the research-and-development stage, with potential applications in medicine and industry.
  2. a machine or robot that can manipulate nanoscale objects with great precision.

Origin of nanobot

First recorded in 1990–95; nano- + (ro)bot
Also called nan·o·ro·bot [nan-uh-roh-buh t, -bot] /ˈnæn əˌroʊ bət, -bɒt/, nanite, nanomachine.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018