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 (bī′kŏn-vĕks′, bī-kŏn′vĕks′)
Convex on both sides or surfaces: a biconvex disk.

bi′con·vex′i·ty (-vĕk′sĭ-tē) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


the characteristic of having two convex surfaces
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
In addition to thickness, USG is useful to evaluate the plantar fascia in terms of echogenicity, biconvexity, perifascial fluid collections, intrafascial calcification, and subcalcaneal spur.
Then the actual estimation of [C] and [P] is performed by a two-step alternating least-squares algorithm which exploits the biconvexity properties of linear decompositions.
Since biconvexity is a linear condition, the intersection I(w) [intersection] U is biconvex, and hence there is an element w' [member of] [W.sub.U] such that I(w') = I(w) [intersection] U.