UFO's

Variant of UFO

UFO definition

☆ UFO (yo̵̅o̅′ef′ō′)

noun pl. UFOs or UFO's

  1. any of a number of unidentified objects or phenomena frequently reported, esp. since 1947, to have been observed or tracked in the sky and variously explained as being atmospheric phenomena, hallucinations, misperceptions of actual objects, alien spacecraft, etc.
  2. a spacecraft from another planet; flying saucer

Etymology: u(nidentified) f(lying) o(bject)

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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