convex

Rounded like domes

Convex describes a surface that curves outward, like the exterior of a sphere or the back of a spoon.

The opposite of concave.

A convex lens is thicker in the middle than at the edges, bending light outward.

In geometry, a convex shape has no indentations—any line drawn between two points on the boundary stays inside the shape.

shape

bulge

Outward curved projection

  • domeRounded vault forming roof
  • curveSmooth, angleless line
  • arcCurved line segment

bow · rounded · outward · protrusion · camber · curvature · hump · belly · swelling · bump

optics

lens

Light-focusing curved glass

refraction · magnification · real image · eyepiece · objective · corrective lens · farsightedness · projection · loupe · reading glasses

geometry

polygon

Multisided plane figure

edge · face · set · boundary · envelope · optimization · simplex · linear programming

mirrors

reflecting

Bouncing back light

blind spot · virtual image · fisheye · surveillance · rear-view · distortion · field of view · safety mirror

Categories
Opposites
surface curvature

convexconcave

Curving inward, not outward

hollow · cupped · dished · cuplike · sunken

spatial protrusion

convexconcave

Curving inward, not outward

sunken · depressed · indented · hollowed · recessed

Phrases
Family

converted, converting, convexity, convex lens, biconvex, convexities

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