l, -tohr-, ek-wuh-]
| 1. | of, pertaining to, or near an equator, esp. the equator of the earth. |
| 2. | of, like, or typical of the regions at the earth's equator: equatorial temperatures. |
| 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. |