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