Definition of Equatorial

1. Noun. 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.

Generic synonyms: Scope, Telescope



2. Adjective. Of or relating to or at an equator. "Equatorial diameter"
Partainyms: Equator
Derivative terms: Equator

3. Adjective. Of or relating to conditions at the geographical equator. "Equatorial heat"
Partainyms: Equator

4. Adjective. Of or existing at or near the geographic equator. "Equatorial Africa"
Similar to: Pantropic, Pantropical, Tropic, Tropical
Derivative terms: Equator
Antonyms: Polar

Definition of Equatorial

1. a. Of or pertaining to the equator; as, equatorial climates; also, pertaining to an equatorial instrument.

2. 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.

Definition of Equatorial

1. Adjective. of, near, or relating to the equator ¹

2. Noun. (astronomy) 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, 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. ¹

¹ Source: wiktionary.com

Definition of Equatorial

1. [adj]

Medical Definition of Equatorial

1. 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. The term equatorial, or equatorial instrument, is sometimes applied to any astronomical instrument which has its principal axis of rotation parallel to the axis of the earth. Source: Websters Dictionary (01 Mar 1998)

Equatorial Pictures

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Lexicographical Neighbors of Equatorial

equating
equation
equation division
equational
equationally
equationlike
equations
equations of motion
equative
equatives
equator
equator bulbi oculi
equator lentis
equator of eyeball
equator of lens
equatorial (current term)
equatorial cleavage
equatorial current
equatorial division
equatorial guinea
equatorial plane
equatorial plate
equatorial staphyloma
equatorially
equatorials
equators
equatorward
equatour
equeries
equerries

Literary usage of Equatorial

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Encyclopedia Americana: A Library of Universal Knowledge (1919)
"The governor-general of French equatorial Africa administers, as commissioner of the French Republic, the Cameroon territories which previously formed part ..."

2. Journal of the American Chemical Society by American Chemical Society (1879)
"The explanation in terms of solvation and association involves the assumption that the (more accessible) equatorial isomer is more strongly self-associated ..."

3. Report of the Annual Meeting (1864)
"On some Old Maps of Africa, placing the Central equatorial Lakes ... In it the Nile is delineated as flowing out of an equatorial lake ; and it was probably ..."

4. Tropical Nature, and Other Essays by Alfred Russel Wallace (1878)
"I. THE CLIMATE AND PHYSICAL ASPECTS OF THE equatorial ZONE. ... Zones of the Earth—Temperature of the equatorial Zone —Causes of the Uniform. ..."

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