(əˈsɛtɪˌlaɪd) n (Elements & Compounds) any of a class of carbides in which the carbon is present as a diatomic divalent ion (C22–). They are formally derivatives of acetylene
acetylide
acetylide
[ə′sed·əl‚īd] (organic chemistry) A compound formed from acetylene with the H atoms replaced by metals, as in cuprous acetylide (Cu2C2).