acetylenes
plural of acetylene
Source: Wiktionary
A*cet"y*lene, n. (Chem.)
Definition: A gaseous compound of carbon and hydrogen, in the proportion of two atoms of the former to two of the latter. It is a colorless gas, with a peculiar, unpleasant odor, and is produced for use as an illuminating gas in a number of ways, but chiefly by the action of water on calcium carbide. Its light is very brilliant. Watts.
Source: Webster’s Unabridged Dictionary 1913 Edition
22 January 2025
(noun) memorial consisting of a very large stone forming part of a prehistoric structure (especially in western Europe)
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