|prōpē|ōlik-, -|älik- noun
Etymology: propiolic International Scientific Vocabulary propi onic (in propionic acid ) + -ol- (probably from sterolic acid ) + -ic; probably from the fact that the relation of propiolic acid to propionic acid is analogous to that of stearolic acid to stearic acid
: a pungent liquid acetylenic acid HC≡CCOOH made by carbonation of sodium acetylide that forms not only salts but also metallic derivatives like those of acetylene