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


convex on both sides, as a lens.

Origin of biconvex

First recorded in 1840–50; bi-1 + convex
Related formsbi·con·vex·i·ty, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for biconvex

bulging, arched, bent, raised, bulgy, gibbous, protuberant

Examples from the Web for biconvex

Historical Examples of biconvex

  • Then comes the biconvex crystalline lens L, an elastic gelatinous-looking solid, which is easily distorted by pressure.

  • The first differs from all the other vertebrae of the body in having a biconvex centrum.

    The Vertebrate Skeleton

    Sidney H. Reynolds

  • Grain is narrow, obovoid, biconvex, with two grooves on the anterior side and with a long embryo.

    A Handbook of Some South Indian Grasses

    Rai Bahadur K. Ranga Achariyar

  • Where two toes overlap, it will be observed that there is a deeper shadow, like the section of a biconvex lens.

  • Although the common liver fluke is flat, many species of the order are round, biconvex, or even filiform organisms.


    T. Spencer Cobbold

British Dictionary definitions for biconvex



(of a lens) having convex faces on both sides; convexo-convex
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

biconvex in Medicine


[bī′kŏn-vĕks, bī-kŏnvĕks′]


Convex on both sides or surfaces.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

biconvex in Science



Convex on both sides or surfaces.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.