| ̷ ̷ ̷ ̷+ noun
or chlor·acetophenone (|)klōr, -ȯr+
( -s )
Etymology: chlor- + acetophenone
: a chlorine derivative of acetophenone ; specifically : the alpha derivative C 6 H 5 COCH 2 Cl obtained as irritating white crystals by reaction of benzene and chloro-acetyl chloride or by chlorination of acetophenone and used especially in solution as a tear gas — called also phenacyl chloride