concavo-convex

[ kon-key-voh-kon-veks ]

adjective

1. Also concave on one side and convex on the other.
2. Optics. pertaining to or noting a lens in which the concave face has a greater degree of curvature than the convex face.

concavo-convex

adjective

1. having one side concave and the other side convex
2. See convexo-concave
   (of a lens) having a concave face with greater curvature than the convex face Compare convexo-concave

Word History and Origins

Origin of concavo-convex¹

1670–80; < Latin concav ( us ) + -o- + convex

Example Sentences

A small concavo-convex scarious appendage, fixed behind the wings at their base, in many Diptera.

From Project Gutenberg

F is called a meniscus, or concavo-convex, being concave on one, and convex on the other side.

From Project Gutenberg

Other types employ two plano-convex lenses, the curved surfaces nearly in contact; or a concavo-convex and a plano-convex lens.

From Project Gutenberg

Grain is orbicular to ovate, concavo-convex, red-brown, and transversely rugose.

From Project Gutenberg

Grain is oblong, obtusely trigonous, or concavo-convex, red-brown and rugulose on the ventral side.

From Project Gutenberg