释义 |
vi·nal I. \ˈvīnəl\ adjective Etymology: Latin vinalis, from vinum wine + -alis -al : of or from wine : vinous II. noun (-s) Etymology: polyvinyl alcohol : any of various synthetic textile fibers that are long-chain polymers composed of at least 50 percent by weight of vinyl alcohol units −CH2CHOH− and at least 85 percent by weight of vinyl alcohol units together with various vinyl acetal units |