Nouns denoting two and three dimensional shapes
- acantha
- any sharply pointed projection
- intrados
- the interior curve of an arch
- disproportion
- lack of proportion; imbalance among the parts of something
- scallop
- one of a series of rounded projections (or the notches between them) formed by curves along an edge (as the edge of a leaf or piece of cloth or the margin of a shell or a shriveled red blood cell observed in a hypertonic solution etc.)
- wart
- any small rounded protuberance (as on certain plants or animals)
- critical angle
- the smallest angle of incidence for which light is totally reflected
- cardioid
- an epicycloid in which the rolling circle equals the fixed circle
- geodesic
- (mathematics) the shortest line between two points on a mathematically defined surface (as a straight line on a plane or an arc of a great circle on a sphere)
- joint
- the shape or manner in which things come together and a connection is made
- oblique triangle
- a triangle that contains no right angle
- hexagon
- a six-sided polygon
- cube
- a three-dimensional shape with six square or rectangular sides
- tetrahedron
- any polyhedron having four plane faces
- gnarl
- something twisted and tight and swollen
- dimple
- any slight depression in a surface
- dip
- a depression in an otherwise level surface
- pocket
- (bowling) the space between the headpin and the pins behind it on the right or left
- rectangle
- a parallelogram with four right angles
- crescent
- any shape resembling the curved shape of the moon in its first or last quarters
- regular hexagon
- a hexagon with six sides of equal length
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