Convex (?), a. [L. convexus vaulted, arched, convex, concave, fr. convehere to bring together: cf. F. convexe. See Vehicle.] Rising or swelling into a spherical or rounded form; regularly protuberant or bulging; -- said of a spherical surface or curved line when viewed from without, in opposition to concave.
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Drops of water naturally form themselves into figures with a convex surface. Whewell.
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Double convex, convex on both sides; convexo-convex.
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