Ordinate

a. [Lat. ordinātus, p. p. of ordināre. See supra.] Regular; methodical.

Ordinate figure (Math.), a figure whose sides and angles are equal.

n. (Geom.) The distance of any point in a curve measured on a line called the axis of ordinates, or on a line parallel to it, from another line called the axis of abscissas, on which the corresponding abscissa of the point is measured.

☞ The ordinate and abscissa, taken together, are called co-ordinates, and define the position of the point with reference to the two axes named, the intersection of which is called the origin of co-ordinates. See CO-ORDINATE.