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methought
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methylene

meth·yl·ene [ méthə ln ]


noun 
Definition:
 
methane derivative: a bivalent group of atoms derived from methane. CH2



adjective 
Definition:
 
containing methylene group of atoms: relating to the group of atoms derived from methane containing one carbon atom and two hydrogen atoms

[Mid-19th century. < French méthylène< Greek methu "wine" + hulē "wood, substance"]
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