Bot. Obs. [ad. L. unguiculus, dim. of unguis nail, claw.] A part of a leaf or petal resembling a nail or claw.
1657. Tomlinson, Renou’s Disp., 375. Medlers, which are of a moderate magnitude, with late heads, discreted with five unguicles or leafes.
1796. H. Hunter, trans. St.-Pierre’s Stud. Nat. (1799), II. 95. The unguicle … is always clearer [in colour] than that of the rest of the petal.
