biconvex

American  

[bahy-kon-veks, bahy-kon-veks] / baɪˈkɒn vɛks, ˌbaɪ kɒnˈvɛks /

adjective

1. convex on both sides, as a lens.

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biconvex British  

/ ˌbaɪkɒnˈvɛks, baɪˈkɒnvɛks /

adjective

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

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biconvex Scientific  

/ bī′kŏn-vĕks′ /

1. Convex on both sides or surfaces.

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Other Word Forms

• biconvexity noun

Etymology

Origin of biconvex

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

Example Sentences

"My helmsman is stationed behind the windows of a pilothouse, which protrudes from the topside of the Nautilus's hull and is fitted with biconvex glass."

From Twenty Thousand Leagues Under the Sea by Walter, F. P.

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

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Gray, Asa

The power of our beacon was increased a hundredfold, like a lamp shining through the biconvex lenses of a world–class lighthouse.

From Twenty Thousand Leagues Under the Sea by Walter, F. P.

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

From Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" by Various

I then examined the fittings of this mechanism, whose power was increased a hundredfold by biconvex lenses that were designed like those in a lighthouse and kept its rays productively focused.

From Twenty Thousand Leagues Under the Sea by Walter, F. P.