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An unidentified flying object ( UFO ), or unidentified anomalous phenomenon [a] ( UAP ), is any perceived airborne, submerged or transmedium phenomenon that cannot be immediately identified or explained. [2] Upon investigation, most UAPs are identified as known objects or atmospheric phenomena, while a small number remain unexplained.
Jun 25, 2024 · unidentified flying object (UFO), any aerial object or optical phenomenon not readily identifiable to the observer. UFOs became a major subject of interest following the development of rocketry after World War II and were thought by some researchers to be intelligent extraterrestrial life visiting Earth.
Unidentified flying objects (UFOs) are airborne objects—or optical phenomena that seem like airborne objects—that an onlooker is unable to identify. UFOs first became a major subject of public interest after World War II, possibly sparked by the development of rocket technology.
The meaning of UFO is a mysterious flying object in the sky that is sometimes assumed to be a spaceship from another planet : unidentified flying object —called also UAP, unidentified aerial phenomenon, unidentified anomalous phenomenon. How to use UFO in a sentence.
UFO definition: 1. abbreviation for unidentified flying object: an object seen in the sky that is thought to be a…. Learn more.
May 16, 2022 · UFO stands for Unidentified Flying Object, a term that the Oxford English Dictionary says was coined in 1953 by writer Donald Keyhoe in an issue of Air Line Pilot. In the article, though,...
UFO definition: any unexplained moving object observed in the sky, especially one assumed by some observers to be of extraterrestrial origin.. See examples of UFO used in a sentence.
Oct 27, 2009 · In popular culture, the term UFO–or unidentified flying object–refers to a suspected alien spacecraft, although its definition encompasses any unexplained aerial phenomena.
Unidentified flying object (UFO), any aerial object or optical phenomenon not readily identifiable to the observer. UFOs became a major subject of interest following the development of rocketry after World War II and were thought by some researchers to be intelligent extraterrestrial life visiting Earth.
Definition of UFO noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
