Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The study of unidentified flying objects.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The study of UFOs.

Etymologies

UFO + -logy.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From UFO +‎ -logy. (Wiktionary)

Examples

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  • Ufology is the study of unidentified flying object (UFO) reports, sightings, alleged physical evidence, and other related phenomena.
    _Wikipedia

    February 24, 2008