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Hydrocarbon derivative
Answer for the clue "Hydrocarbon derivative ", 7 letters:
methene
Word definitions for methene in dictionaries
Wiktionary
Word definitions in Wiktionary
n. (context chemistry English) methylene
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Methylene \Meth"yl*ene\, n. [F. m['e]thyl[`e]ne, from Gr. ? wine + ? wood; -- a word coined to correspond to the name wood spirit.] (Chem.) A divalent hydrocarbon radical, -CH2- , not known in the free state, but regarded as an essential residue and ...