biconvex

Example Sentences

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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