The definition of a Cadillac is a car brand produced by General Motors, or something that is the highest quality of its kind.
(noun)An example of a Cadillac is the most expensive and well made designer bag on the market.
See Cadillac in Webster's New World College Dictionary
noun
Origin: < Cadillac, trademark for a luxury automobile, after Sieur Antoine de la Mothe Cadillac
See Cadillac in American Heritage Dictionary 4
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