modacrylic means any of several copolymer fibres (mostly polymers of acrylonitrile) that are soft yet strong, and are used in carpeting, wigs, etc. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
noun
- Any of several copolymer fibres (mostly polymers of acrylonitrile) that are soft yet strong, and are used in carpeting, wigs, etc.