Definition of equatorial Equatorial

/iˌkwʌtɔˈɹiʌl/ - [eekwutoreeul] - e•qua•to•ri•al

We found 10 definitions of equatorial from 5 different sources.

What does equatorial mean?

Noun Plural: equatorials
equatorial - 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
Adjective
equatorial - of or existing at or near the geographic equator; "equatorial Africa"
		polar having a pair of equal and opposite charges
		pantropic, pantropical distributed throughout the tropics
equatorial - of or relating to or at an equator; "equatorial diameter"
equatorial - of or relating to conditions at the geographical equator; "equatorial heat"

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equatorial (Noun)
A kind of telescope mounted so as to have two axes of motion at right angle s 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, or the hour angle, so that the telescope may be directed, even in the daytime, to any star or other object whose right ascension and declination are known.
equatorial (Adjective)
Of, near, or relating to the equator.

equatorial (a.)
Of or pertaining to the equator; as, equatorial climates; also, pertaining to an equatorial instrument.
equatorial (n.)
An instrument consisting of a telescope so mounted 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, the one for measuring declination, and the other right ascension, or the hour angle, so that the telescope may be directed, even in the daytime, to any star or other object whose right ascension and declination are known. The motion in right ascension is sometimes communicated by clockwork, so as to keep the object constantly in the field of the telescope. Called also an equatorial telescope.