Looking for the meaning or definition of the word denier? Here's what it means.
Noun
(now historical) An old French coin worth one-twelfth of a sou.
A unit of weight which indicates the fineness of fiber or yarn, equal to one gram per 9000 meters, used especially to measure or indicate the fineness of hosiery. Originally equal to the weight of a denier coin per 9600 aunes.