equatorial

Of, near, or relating to the equator.

That plant is best suited to equatorial climates.

Relating to the midline of any approximately spherical object.

of a bond, lying approximately in the plane of a ring, perpendicular to its axis

A kind of telescope mounted so as to have two axes of motion at right angles to each other, one of them parallel to the axis of the Earth, and each carrying a graduated circle, one for measuring declination, and the other right ascension, o