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