Wordnet 3.0
NOUN (1)
1.
one of the coordinates in a system of coordinates that locates a point on a plane or in space by its distance from two lines or three planes respectively;
the two lines or the intersections of the three planes are the coordinate axes;
WordNet (r) 3.0 (2006):
Cartesian coordinate
n 1: one of the coordinates in a system of coordinates that
locates a point on a plane or in space by its distance from
two lines or three planes respectively; the two lines or
the intersections of the three planes are the coordinate
axes