Welding gas

• Acetylene, e.g
• A colorless flammable gas used chiefly in welding and in organic synthesis

Wiktionary Word definitions in Wiktionary
n. (context organic chemistry English) A hydrocarbon containing at least one carbon–carbon triple bond.

Wikipedia Word definitions in Wikipedia
In organic chemistry , an alkyne is an unsaturated hydrocarbon containing at least one carbon—carbon triple bond . The simplest acyclic alkynes with only one triple bond and no other functional groups form a homologous series with the general chemical formula ...

WordNet Word definitions in WordNet
n. a colorless flammable gas used chiefly in welding and in organic synthesis [syn: acetylene , ethyne ]