| block |
one of a set of small cubes or other three-dimensional shapes, usu. made of wood or plastic, and used as a child's building toy. [1/19 definitions] |
| centroid |
the arithmetic mean of all points that form the boundary of a two- or three-dimensional object. |
| cone |
in geometry, a three-dimensional shape created by rotating a right triangle 360 degrees on its vertical axis. [1/5 definitions] |
| crystal |
a naturally symmetrical or layered solid, such as diamond or quartz, with a regularly repeating three-dimensional atomic, ionic, or molecular structure. [1/7 definitions] |
| cyberspace |
the electronic medium of globally networked computers, esp. when conceived of as a three-dimensional space where online communication and transactions take place. |
| diorama |
a scene represented by three-dimensional objects placed in front of a painted background, as in a natural history museum. [1/2 definitions] |
| dodecahedron |
a three-dimensional geometric figure with twelve plane faces. |
| helix |
a three-dimensional curve with a central axis and a steadily increasing, steadily decreasing, or constant circumference; spiral. |
| hologram |
a three-dimensional photograph produced by a laser beam reflected off an object onto film. |
| modeling |
the process of shaping certain materials, esp. to create three-dimensional forms. [1/2 definitions] |
| octahedron |
a three-dimensional figure with eight flat surfaces. |
| octant |
any of the eight parts into which three-dimensional space is divided by three mutually perpendicular planes. [1/4 definitions] |
| pop-up |
having or being a piece of artwork, esp. on cardboard or stiff paper, that becomes three-dimensional when it is opened, or that has parts that move up and down. [1/6 definitions] |
| sculpture |
the art or craft of producing three-dimensional artistic images, as by carving, chiseling, or molding. [1/7 definitions] |
| solid |
having or pertaining to a three-dimensional form. [1/14 definitions] |
| solid geometry |
the branch of geometry dealing with three-dimensional figures and surfaces. |
| space |
the three-dimensional expanse that contains the earth and everything beyond it. [1/12 definitions] |
| sphere |
a round, three-dimensional geometric figure in which every point on the surface is an equal distance from the center. [1/6 definitions] |
| spiral |
a curve that begins from and continues to form a circle around a fixed point and that constantly increases or decreases in distance from it, in either a flat or a three-dimensional plane; coil or helix. [1/6 definitions] |
| stereo |
a method of photography or a photograph that gives an illusion of three-dimensional vision; stereoscopy. [1/4 definitions] |
| stereo- |
three-dimensional. [1/2 definitions] |