acetylene, ethyne, alkyne
(noun) a colorless flammable gas used chiefly in welding and in organic synthesis
Source: WordNet® 3.1
acetylene (countable and uncountable, plural acetylenes)
(organic chemistry, countable) Any organic compound having one or more carbon–carbon triple bonds; an alkyne.
(organic compound, uncountable) Ethyne; the simplest alkyne, a hydrocarbon of formula HC≡CH. It is a colourless, odorless gas, formerly used as an illuminating gas, but now used in welding or metallurgy.
A lamp powered by acetylene, particularly a motor vehicle headlight.
• (IUPAC name): ethyne
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
17 May 2025
(noun) sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed
The Boston Tea Party helped popularize coffee in America. The hefty tea tax imposed on the colonies in 1773 resulted in America switching from tea to coffee. In the lead up to the Revolutionary War, it became patriotic to sip java instead of tea. The Civil War made the drink more pervasive. Coffee helped energize tired troops, and drinking it became an expression of freedom.
