unidentified flying object

noun
plural unidentified flying objects

Definition of unidentified flying object

: a mysterious flying object in the sky that is sometimes assumed to be a spaceship from another planet The Peking Evening News said today that it was swamped with telephone calls from people reporting an "unidentified flying object" over the city. The bright round object spotted yesterday turned out to be a research balloon reflecting the sunlight, the newspaper said.The New York Times

called also UFO

First Known Use of unidentified flying object

1947, in the meaning defined above

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The first known use of unidentified flying object was in 1947

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Cite this Entry

“Unidentified flying object.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unidentified%20flying%20object. Accessed 24 Sep. 2020.

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