Wiktionary
acetylide
n. (context organic chemistry English) Any organic compound derived from acetylene or a terminal acetylene by replacing a hydrogen atom with a metal.
Wikipedia
Acetylide
Acetylide is a carbanion with the chemical formula HC≡C. The classification includes saline carbides and organometallic compounds of terminal alkynes and acetylene. Substituted acetylides, which have the general structure RC≡C (where R is an organic side chain), are useful reagents in organic synthesis.
Usage examples of "acetylide".
I piped some acetylene gas into closed runs, put the acetylide inside, and stuck in a kind of bait that brings rats in a hurry.