Definition of unidentified flying object Unidentified flying object
We found 4 definitions of unidentified flying object from 3 different sources.
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What does unidentified flying object mean?
WordNet
Noun |
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| unidentified flying object - an (apparently) flying object whose nature is unknown; especially those considered to have extraterrestrial origins | ||
| UFO, flying saucer | ||
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Wiktionary 
- unidentified flying object (Noun)
Anything not readily explainable appearing to move through or be suspended in the air, primarily used to refer to objects that seem to be at least of small familiar aircraft size. Abbreviated UFO. - unidentified flying object (Noun)
An alien spacecraft. More commonly called a UFO.
Wikipedia 
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A UFO (Unidentified Flying Object) is any object flying in the sky which cannot be identified by the person who sees it. Sometimes the object is investigated. If people can still not figure out what the object is after an investigation, it is called a UFO. If they figure out what the object is, it can no longer be called a UFO because it has been identified.
Even though UFOs can be anything, people often use the word "UFO" when they are talking about alien spacecraft. Flying saucer is another word that is often used to describe an unidentified flying object.
Identified flying objects (IFOs).
Studies estimate that 50-90% of all reported UFO sightings are identified later. Usually 10-20% are never identified. Studies also show that very few UFO sightings are hoaxes (people trying to trick other people). Most UFOs are actually natural or man-made objects that looked strange.
10-20% of IFOs are other causes (such as birds, clouds, mirages, searchlights, etc.)
