Entry 1 sense Webster, 1913 Lenticular /(-lẽr)/ · Len·tic·u·lar · IPA /lɛnˈtɪk.jə.lɚ/ 01 a. Resembling a lentil in size or form; having the form of a double-convex lens. 1. Resembling a lentil in size or form; having the form of a double-convex lens.