The chemical reactions and pathways resulting in the breakdown of an acetylenic compound, any compound which contains a carbon-carbon triple bond (aka C#C). [ http://dx.doi.org/10.1007/978-1-4615-4913-0_3 GOC:krc ]
Synonyms: alkyne substituted compound catabolic process alkyne substituted compound degradation alkyne substituted compound breakdown alkyne substituted compound catabolism