What is "lentoid"

Lentoid \Len"toid\ (l[e^]n"toid), a. [Lens + -oid.] Having the form of a lens; lens-shaped.

a. Having the form of a lens; lens-shaped.

Lentoid is a geometric shape of a three-dimensional body, best described as a circle viewed from one direction and a convex lens viewed from an orthogonal direction. The term is most often used in describing jewelry and cellular phenomena in microbiology.