[mod-uh-kril-ik, mod-] 
| any of various synthetic copolymer textile fibers, as Dynel, containing less than 85 percent but more than 35 percent of acrylonitrile. |
| mod·a·cryl·ic (mŏd'ə-krĭl'ĭk) n. One of several synthetic, long-chain polymer textile fibers containing 35-85 percent acrylonitrile. [mod(ified) acrylic.] |
modacrylic
in textiles, any synthetic fibre composed of at least 35 percent but less than 85 percent by weight of the chemical compound acrylonitrile. It is a modified form of the acrylic group, fibres composed of a minimum of 85 percent acrylonitrile. Modacrylic fibres include trademarked Dynel (acrylonitrile and polyvinyl chloride) and Verel (acrylonitrile and vinylidene chloride).
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əˈkrɪl