Nouns denoting two and three dimensional shapes

something approximating the shape of a triangle
spherical polygon
a figure on the surface of a sphere bounded by arcs of 3 or more great circles
regular polygon
a polygon with all sides and all angles equal
obtuse triangle
a triangle that contains an obtuse interior angle
a quadric surface generated by rotating a hyperbola around its main axis
(astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day
a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
a bend or curve (especially in a coastline)
a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
the curve theoretically assumed by a perfectly flexible and inextensible cord of uniform density and cross section hanging freely from two fixed points
figure eight
a two-dimensionsal figure having the shape of the number eight
complex plane
a geometric representation of the complex numbers established by the real axis and the orthogonal imaginary axis; it can be thought of as a modified Cartesian plane, with the real part of a complex number represented by a displacement along the x-axis, and the imaginary part by a displacement along the y-axis
a square-shaped object
anything with a round or oval shape (formed by a curve that is closed and does not intersect itself)
Cupid's bow
the double curve of the upper lip when considered to resemble Cupid's bow
something twisted and tight and swollen
a surface whose plane sections are all ellipses or circles
a split or indentation in something (as the palate or chin)
a hollow concave shape made by removing something
a double curve resembling the letter S
 List More