TETRAMETHYLENE
Tet`ra*meth"yl*ene, n. Etym: [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.
Source: Webster’s Unabridged Dictionary 1913 Edition
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2 July 2025
RESTITUTION
(noun) getting something back again; “upon the restitution of the book to its rightful owner the child was given a tongue lashing”
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