1. convex polygon

noun. A polygon such that no side extended cuts any other side or vertex; it can be cut by a straight line in at most two points.
Synonyms
polygonal shape polygon
Antonyms
concave polygon convex polygon
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2. concavo-convex

adjective. Concave on one side and convex on the other with the concavity being greater than the convexity.
Synonyms
concave
Antonyms
convex protrusive

3. convexo-convex

adjective. Convex on both sides; shaped like a lentil.
Synonyms
convex biconvex lentiform bulging lenticular
Antonyms
concave intrusive cupular planoconcave acetabular

4. polygon

noun. (ˈpɑːlɪˌgɑːn) A closed plane figure bounded by straight sides.
Synonyms
trilateral heptagon decagon polygonal shape triangle isogon octagon dodecagon undecagon quadrilateral hexagon plane figure concave polygon trigon nonagon pentagon two-dimensional figure convex polygon spherical polygon quadrangle tetragon
Antonyms
concave polygon convex polygon oblique triangle right triangle unilateral
Etymology
polygon (English)
πολύγωνον (Ancient Greek (to 1453))

5. convex

adjective. (kənˈvɛks, ˈkɑːnˌvɛks) Curving or bulging outward.
Synonyms
gibbose hogged convexo-concave convexo-convex protrusive broken-backed biconvex umbel-like lentiform planoconvex umbellate gibbous bulging bell-shaped helmet-shaped lenticular
Antonyms
concave intrusive undamaged fit cupular
Etymology
convex (English)
convexus (Latin)
con- (Latin)
cum (Latin)
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