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The Collaborative International Dictionary
melissylene

Melene \Mel"ene\, n. [Melissic + ethylene.] (Chem.) An unsaturated hydrocarbon, C30H60, of the ethylene series, obtained from beeswax as a white, scaly, crystalline wax; -- called also melissene, and melissylene.

Wiktionary
melissylene

n. (context chemistry English) melene