D defs.my
Entry 1 sense Webster, 1913

Mesityl

· Mes·i·tyl · IPA
01 n. A hypothetical radical formerly supposed to exist in mesityl oxide.
  1. 1.
    A hypothetical radical formerly supposed to exist in mesityl oxide.(Chem.)
Phrases & compounds
Mesityl oxide — a volatile liquid having the odor of peppermint, obtained by certain dehydrating agents from acetone; -- formerly called also dumasin.