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n. 1. A thing of the same rank with another thing; one two or more persons or things of equal rank, authority, or importance. [ 1913 Webster ]

It has neither coordinate nor analogon; it is absolutely one. Coleridge. [ 1913 Webster ]

2. pl. (Math.) Lines, or other elements of reference, by means of which the position of any point, as of a curve, is defined with respect to certain fixed lines, or planes, called coordinate axes and coordinate planes. See Abscissa. ☞ Coordinates are of several kinds, consisting in some of the different cases, of the following elements, namely: (a) (Geom. of Two Dimensions) The abscissa and ordinate of any point, taken together; as the abscissa PY and ordinate PX of the point P (Fig. 2, referred to the coordinate axes AY and AX. (b) Any radius vector PA (Fig. 1), together with its angle of inclination to a fixed line, APX, by which any point A in the same plane is referred to that fixed line, and a fixed point in it, called the pole, P. (c) (Geom. of Three Dimensions) Any three lines, or distances, PB, PC, PD (Fig. 3), taken parallel to three coordinate axes, AX, AY, AZ, and measured from the corresponding coordinate fixed planes, YAZ, XAZ, XAY, to any point in space, P, whose position is thereby determined with respect to these planes and axes. (d) A radius vector, the angle which it makes with a fixed plane, and the angle which its projection on the plane makes with a fixed line line in the plane, by which means any point in space at the free extremity of the radius vector is referred to that fixed plane and fixed line, and a fixed point in that line, the pole of the radius vector. [ 1913 Webster ]

Cartesian coordinates. See under Cartesian. --
Geographical coordinates, the latitude and longitude of a place, by which its relative situation on the globe is known. The height of the above the sea level constitutes a third coordinate. --
Polar coordinates, coordinates made up of a radius vector and its angle of inclination to another line, or a line and plane; as those defined in (b) and (d) above. --
Rectangular coordinates, coordinates the axes of which intersect at right angles. --
Rectilinear coordinates, coordinates made up of right lines. Those defined in (a) and (c) above are called also Cartesian coordinates. --
Trigonometrical coordinates or
Spherical coordinates, elements of reference, by means of which the position of a point on the surface of a sphere may be determined with respect to two great circles of the sphere. --
Trilinear coordinates, coordinates of a point in a plane, consisting of the three ratios which the three distances of the point from three fixed lines have one to another. [ 1913 Webster ]

v. t. [ imp. & p. p. Coordinated; p. pr. & vb. n. Coordinating. ] 1. To make coordinate; to put in the same order or rank; as, to coordinate ideas in classification. [ 1913 Webster ]

2. To give a common action, movement, or condition to; to regulate and combine so as to produce harmonious action; to adjust; to harmonize; as, to coordinate muscular movements. [ 1913 Webster ]

3. to be co-ordinated; as, These activities co-ordinate well.
Syn. -- coordinate. [ WordNet 1.5 ]

adj. 1. dexterous in the use of more than one set of muscle movements. [ WordNet 1.5 ]

She was usually good with her hands and well coordinated. Mary McCarthy

2. matched in color and pattern so as to be pleasing to the esthetic sense; as, The curtains and walls were color coordinated.
Syn. -- matching. [ WordNet 1.5 ]

3. operating as a unit; as, a coordinated development plan.
Syn. -- coordinated, concerted, interconnected, unified. [ WordNet 1.5 +PJC ]

adv. In a coordinate manner. [ 1913 Webster ]

n. The state of being coordinate; equality of rank or authority. [ 1913 Webster ]