discernĭcŭlum

I. The bodkin in a woman's head-dress, which parted the hair, a hair-bodkin, Lucil. ap. Non. 35, 31; cf. Varr. L. L. 5, § 129.—*

II. Trop., a difference: coloris, Gell. 17, 15, 4; Ambros. Apol. Dav. Alt. 4, 26.