unidentified flying object
Meanings
noun
- Anything not readily explainable appearing to move through or be suspended in the air.
- Such things as seem to be discrete objects and comparable to aircraft.
- An alien spacecraft.
Pronunciation
Word forms
Etymology
The phrase is usually attributed to US Air Force officer Edward J. Ruppelt (1923–1960) who coined it as a replacement of the terms flying saucer and flying disk.
Synonyms
Translations
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