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Webster 1913 Edition
Tetramethylene
Tetˊra-meth′yl-ene
,Noun.
[
Tetra-
+ methylene
.] (Chem.)
(a)
A hypothetical hydrocarbon,
C4H8
, analogous to trimethylene, and regarded as the base of well-known series or derivatives. (b)
Sometimes, an isomeric radical used to designate certain compounds which are really related to butylene.