Webster’s Revised Unabridged Dictionary · 1913
Lentil
Len′til (lĕn′tĭl), n. [F. lentille, fr. L. lenticula, dim. of lens, lentis, lentil. Cf. Lens.] (Bot.) A leguminous plant of the genus Ervum (Ervum Lens), of small size, common in the fields in Europe. Also, its seed, which is used for food on the continent.
☞ The lentil of the Scriptures probably included several other vetchlike plants.
Lentil shell (Zoöl.), a small bivalve shell of the genus Ervillia, family Tellinidæ.