ˈvaleryleneChem. [f. as prec. + -ene.] A hydrocarbon homologous with acetylene. 1868Watts Dict.Chem. V. 981 Valerylene..is a colourless very mobile liquid, which floats on water, and is nearly insoluble therein.1873Rolfe Phys.Chem. p. xviii, Quintine or Valerylene.