Assertion: optical illusion | /r/HasProperty | rare
Facets:
value: very
type: DEGREE
Source sentences:
text: But since optical illusions are rare, a better and more accurate term is "visual illusions," because this helps to explain why these perceptions happen.
text: The noun OPTICAL ILLUSION has 1 sense: 1. an optical phenomenon that results in a false or deceptive visual impression Familiarity information: OPTICAL ILLUSION used as a noun is very rare.