vinyl Meaning, Definition & Usage

  1. noun a univalent chemical radical derived from ethylene
    vinyl radical; vinyl group.
  2. noun shiny and tough and flexible plastic; used especially for floor coverings

WordNet

Vi"nyl noun
Etymology
L. vinum wine + -yl.
Definitions
  1. (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.

Webster 1913