biconvex adj 1: convex on both sides; shaped like a lentil [syn: {biconvex}, {convexo-convex}, {lenticular}, {lentiform}]
Biconvex \Bi*con"vex\, a. [Pref. bi- + convex.] Convex on both sides; as, a biconvex lens. [1913 Webster] Bicorned Bicorn