Unsaturated Hydrocarbon With a Double Bond
This page is the CodyCross answer for the clue below from Australia, Group 1014, Puzzle 3 (Legendary Bunyip).
Question is: Unsaturated Hydrocarbon With a Double Bond
and the answer is: ALKENE
Word Meaning:
ALKENE — (organic chemistry) An unsaturated, aliphatic hydrocarbon with one or more carbon–carbon double bonds.
Definitions from Wiktionary.