biconvex

[ bahy-kon-veks, bahy-kon-veks ]

adjective

1. convex on both sides, as a lens.

biconvex

/ ˌbaɪkɒnˈvɛks; baɪˈkɒnvɛks /

adjective

1. (of a lens) having convex faces on both sides; convexo-convex

biconvex

/ bī′kŏn-vĕks′ /

1. Convex on both sides or surfaces.

Other Words From

• bicon·vexi·ty noun

Word History and Origins

Origin of biconvex¹

First recorded in 1840–50; bi- ¹ + convex

Example Sentences

The atlas (fig. 71) is remarkable, consisting of four pieces, and the first caudal is biconvex.

From Project Gutenberg

The first caudal vertebra of modern Crocodilia is biconvex, and in the Chelonia all types of vertebral centra are found.

From Project Gutenberg

The coloured corpuscles of amphibia as well as of nearly all vertebrates below mammals are biconvex and elliptical.

From Project Gutenberg

The lens is biconvex in diurnal mammals, but in nocturnal and aquatic it is spherical.

From Project Gutenberg

The holochroal eyes are of two kinds, one with plano-convex and one with biconvex lenses.

From Project Gutenberg