(noun, adjective)


1. of or relating to or at an equator

- equatorial diameter

2. of or relating to conditions at the geographical equator

- equatorial heat

3. of or existing at or near the geographic equator

- equatorial Africa

Similar word(s): pantropic, pantropical, tropic, tropical

Sentences with equatorial as an adjective:

- That plant is best suited to equatorial climates.


1. a telescope whose mounting has only two axes of motion, one parallel to the Earth's axis and the other one at right angles to it

Definition categories: man–made, scope, telescope