Parallelogram vs. Parallelepiped
Parallelogramnoun
(geometry) A convex quadrilateral in which each pair of opposite edges are parallel and of equal length.
Parallelogramnoun
either of two rectangular areas (respectively the large parallelogram and the small parallelogram) abutting the goal line in front of the goal. (Since 1986 officially named the large rectangle and small rectangle, though the older names are still occasionally used.)
Parallelogramnoun
A right-lined quadrilateral figure, whose opposite sides are parallel, and consequently equal; - sometimes restricted in popular usage to a rectangle, or quadrilateral figure which is longer than it is broad, and with right angles.
Parallelogramnoun
a quadrilateral whose opposite sides are both parallel and equal in length
Parallelogram
In Euclidean geometry, a parallelogram is a simple (non-self-intersecting) quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.
Parallelepipednoun
(geometry) A solid figure, having six faces, all parallelograms; all opposite faces being similar and parallel.
Parallelepipednoun
A prism whose bases are parallelograms.
Parallelepipednoun
a prism whose bases are parallelograms
Parallelepiped
In geometry, a parallelepiped is a three-dimensional figure formed by six parallelograms (the term rhomboid is also sometimes used with this meaning). By analogy, it relates to a parallelogram just as a cube relates to a square.
