modacrylic fiber

[ mod-uh-kril-ik fahy-ber, mod- ]

noun

1. any of various synthetic copolymer textile fibers, as Dynel, containing less than 85 percent but more than 35 percent of acrylonitrile.

Word History and Origins

Origin of modacrylic fiber¹

1955–60; mod(ified) ( def ) + acrylic

Example Sentences

The hair is really thousands of colored strands of polyester or modacrylic fiber, usually in bunches of three to eight strands.*

From Time Magazine Archive