The definition of a fad is something that people are interested in for a short period of time(noun)
An example of fad is the doll line called the "Cabbage Patch Kids."
See fad in Webster's New World College Dictionary
Origin: 19th c. < Brit Midland dial.
See fad in American Heritage Dictionary 4
Origin: Possibly from fidfad, fussy person, fussy
Origin: , from fiddle-faddle.
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