any compound derived from acetylene by the replacement of one or both of its hydrogen atoms by a metal, as silver acetylide, Ag2Cl2.
Origin of acetylide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
any of a class of carbides in which the carbon is present as a diatomic divalent ion (C 2 2–). They are formally derivatives of acetylene
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012