Synonyms: orthogonal, rectangular
Definition: having a set of mutually perpendicular axes; meeting at right angles
Usage: wind and sea may displace the ship's center of gravity along three orthogonal axes; a rectangular Cartesian coordinate system
Similar words: perpendicular
Definition: intersecting at or forming right angles
Usage: the axes are perpendicular to each other
Synonyms: rectangular
Definition: having four right angles
Usage: a rectangular figure twice as long as it is wide