Nouns denoting two and three dimensional shapes

prismoid
a prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms
 
bead
a shape that is spherical and small
 
bound
a line determining the limits of an area
 
isosceles triangle
a triangle with two equal sides
 
excrescence
something that bulges out or is protuberant or projects from its surroundings
 
triangle
something approximating the shape of a triangle
 
Platonic solid
any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
 
parallelogram
a quadrilateral whose opposite sides are both parallel and equal in length
 
belly
a part that bulges deeply
 
distorted shape
a shape resulting from distortion
 
equiangular triangle
a three-sided regular polygon
 
angle of refraction
the angle between a refracted ray and a line perpendicular to the surface between the two media at the point of refraction
 
pouch
an enclosed space
 
facet
a smooth surface (as of a bone or cut gemstone)
 
corrugation
a ridge on a corrugated surface
 
rectangle
a parallelogram with four right angles
 
line
a slight depression or fold in the smoothness of a surface
 
conic section
(geometry) a curve generated by the intersection of a plane and a circular cone
 
bulb
anything with a round shape resembling a teardrop
 
convex shape
a shape that curves or bulges outward
 
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