First Known Use: 1835
Dictionary
methylene
noun meth·y·lene \ˈme-thə-ˌlēn, -lən\
Definition of METHYLENE
: a divalent hydrocarbon group CH2 derived from methane
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Origin of METHYLENE
French méthylène, from Greek methy wine + hylē wood — more at mead
Medical Dictionary
methylene
noun meth·y·lene \ˈmeth-ə-ˌlēn, -lən\
Medical Definition of METHYLENE
: a bivalent hydrocarbon radical CH2 derived from methane by removal of two hydrogen atoms
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