D defs.my
Entry 1 sense Webster, 1913

Heptine

· Hep·tine · IPA
01 n. Any one of a series of unsaturated metameric hydrocarbons, C7H12, of the acetylene series.
  1. 1.
    Any one of a series of unsaturated metameric hydrocarbons, C7H12, of the acetylene series.(Chem.)