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 other is Google Cardboard: a nifty kit that sells for $15 and that holds a smartphone in place in front of biconvex lenses.

From New York Times

Tube of corolla cylindrical, enlarging above; upper lip arched, compressed, straight in front; the lower erect-spreading, biconvex, 3-lobed at the apex.

From Project Gutenberg

Convex on both sides; as, a biconvex lens.

From Project Gutenberg

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

From Project Gutenberg

The red blood-corpuscles are invariably oval disks, with a central nucleus which causes a slight swelling; hence they are oval and biconvex.

From Project Gutenberg