Nouns denoting two and three dimensional shapes
- regular hexahedron
- a hexahedron with six equal squares as faces
- two-dimensional figure
- a two-dimensional shape
- lead
- the angle between the direction a gun is aimed and the position of a moving target (correcting for the flight time of the missile)
- equiangular triangle
- a three-sided regular polygon
- pentagon
- a five-sided polygon
- pentacle
- a star with 5 points; formed by 5 straight lines between the vertices of a pentagon and enclosing another pentagon
- flank
- a subfigure consisting of a side of something
- twist
- a circular segment of a curve
- frown line
- a facial wrinkle associated with frowning
- crack
- a long narrow depression in a surface
- figure
- a combination of points and lines and planes that form a visible palpable shape
- circle
- something approximating the shape of a circle
- hexagon
- a six-sided polygon
- convex polyhedron
- a polyhedron any plane section of which is a convex polygon
- caput
- a headlike protuberance on an organ or structure
- love line
- a crease on the palm; palmists say it indicates your emotional nature
- bottleneck
- a narrowing that reduces the flow through a channel
- tesseract
- the four-dimensional analogue of a cube
- chord
- a straight line connecting two points on a curve
- helix angle
- the constant angle at which a helix cuts the elements of a cylinder or cone
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