plical,a.|ˈplaɪkəl| [f.med.L. plica(see plica) + -al1.] Pertaining to or of the nature of a plica. 1890Cent.Dict., Plical, in Bot., of or pertaining to plica.1895Meyrick Brit. Lepidopt. 617 Stigmata raised, blackish, first discal somewhat before plical.