vinyl

from WordNet (r) 3.0 (2006)

vinyl
    n 1: a univalent chemical radical derived from ethylene [syn:
         {vinyl}, {vinyl group}, {vinyl radical}]
    2: shiny and tough and flexible plastic; used especially for
       floor coverings

from The Collaborative International Dictionary of English v.0.48

Vinyl \Vi"nyl\, n. [L. vinum wine + -yl.] (Chem.)
   The hypothetical radical {C2H3}, regarded as the
   characteristic residue of ethylene and that related series of
   unsaturated hydrocarbons with which the allyl compounds are
   homologous.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Ethenyl \Eth"e*nyl\, n. [Ethene + -yl.] (Chem.)
   (a) A trivalent hydrocarbon radical, {CH3.C}.
   (b) A univalent hydrocarbon radical of the ethylene series,
       {CH2:CH}; -- called also {vinyl}. See {Vinyl}.
       [1913 Webster]

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