Lewis & Short

lentĭcŭla, ae, f. dim. [2. lens], a lentil.

  1. I. Lit.: faba vel lenticula, Cels. 2, 18: hoc mense lenticulam seres, Pall. 3, 4.
  2. II. Transf.
    1. A. The shape of a lentil, lentilshape, Plin. 37, 12, 75, § 196.
    2. B. A vessel shaped like a lentil: vasa fictilia (quas a similitudine lenticulas vocant), Cels. 2, 17, § 25; cf. Isid. Orig. 20, 7, 4; Vulg. 1 Reg. 10, 1.
    3. C. A freckly eruption, freckles, Plin. 26, 1, 5, § 7: lenticulam tollunt galbanum et nitrum, Cels. 6, 5; cf. lentigo.