convex

If something is bulging outwards in a curve, it's convex in shape. The surfaces of soccer balls, old television screens, and eyeballs are all convex in shape.

One of the most famous uses of a convex shape are the curving mirrors in a fun house. Not to be confused with its popular partner, the concave mirror, which curves inwards. How can you tell which is which? If you look like you're three feet tall and weigh 300 pounds, you're looking in a convex mirror. If you look like you're twelve feet tall weigh 30 pounds, you're looking in a concave mirror. Enjoy!

Definitions of convex
  1. adjective
    curving or bulging outward
    synonyms: bulging
    bell-shaped
    having a convex shape that resembles a bell
    biconvex, convexo-convex, lenticular, lentiform
    convex on both sides; shaped like a lentil
    broken-backed, hogged
    (of a ship) so weakened as to sag at each end
    convexo-concave
    convex on one side and concave on the other with the convexity being greater than the concavity
    gibbose, gibbous
    (used of the moon) more than half full
    helmet-shaped
    having the convex shape of a helmet
    planoconvex
    flat on one side and convex on the other
    umbel-like, umbellate
    resembling an umbel in form
    protrusive
    thrusting outward
    see moresee less
    Antonyms:
    concave
    curving inward
    acetabular, cotyloid, cotyloidal
    of the cup-shaped socket that receives the head of the thigh bone
    biconcave, concavo-concave
    concave on both sides
    boat-shaped
    having a concave shape like a boat
    bowl-shaped
    having a concave shape with an open top like a bowl
    bursiform, pouch-shaped, pouchlike, saclike
    shaped like a pouch
    concavo-convex
    concave on one side and convex on the other with the concavity being greater than the convexity
    cuplike
    resembling the shape of a cup
    cupular, cupulate
    shaped like (or supporting) a cupule
    dish-shaped, dished, patelliform
    shaped like a dish or pan
    planoconcave
    flat on one side and concave on the other
    recessed
    resembling an alcove
    saucer-shaped
    having a concave shape like a saucer
    umbilicate
    depressed like a navel
    urn-shaped
    having a concave shape like an urn
    intrusive
    thrusting inward
    show more antonyms...
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