equatorial

adjective

1. of, relating to, or near an equator, especially the equator of the earth.
2. of, like, or typical of the regions at the earth’s equator: equatorial temperatures.

noun

3. a telescope mounting having two axes of motion, one parallel to the earth’s axis and one at right angles to it.
4. a telescope with such a mounting.

adjective

1. of, like, or existing at or near the equator
2. astronautics (of a telescope) mounted on the perpendicular axes, one of which is parallel to the earth’s axisan equatorial orbit
3. astronomy of or referring to the celestial equatorequatorial coordinates

noun

4. an equatorial mounting for a telescope