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equatorial
e·qua·to·ri·al E0188300 (ē′kwə-tôr′ē-əl, ĕk′wə-)adj.1. a. Of, relating to, or resembling the earth's equator.b. Relating to conditions that exist at the earth's equator: equatorial heat.2. Being or having a mounting with two perpendicular axes, one of which is parallel to the earth's rotational axis, allowing a telescope so mounted to track a celestial object for long periods with adjustments only to that axis.n. A telescope having an equatorial mounting.
e′qua·to′ri·al·ly adv.equatorial (ˌɛkwəˈtɔːrɪəl) adj1. (Physical Geography) of, like, or existing at or near the equator2. (Astronautics) astronautics (of a telescope) mounted on the perpendicular axes, one of which is parallel to the earth's axis: an equatorial orbit. 3. (Astronomy) astronomy of or referring to the celestial equator: equatorial coordinates. n (Physical Geography) an equatorial mounting for a telescope ˌequaˈtorially adve•qua•to•ri•al (ˌi kwəˈtɔr i əl, -ˈtoʊr-, ˌɛk wə-)
adj. 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. n. 3. a telescope mounting having two axes of motion, one parallel to the earth's axis and one at right angles to it. [1655–65] e`qua•to′ri•al•ly, adv. Thesaurus| Noun | 1. | 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 ittelescope, scope - a magnifier of images of distant objects | | Adj. | 1. | equatorial - of or relating to or at an equator; "equatorial diameter" | | 2. | equatorial - of or relating to conditions at the geographical equator; "equatorial heat" | | 3. | equatorial - of or existing at or near the geographic equator; "equatorial Africa"polar - of or existing at or near a geographical pole or within the Arctic or Antarctic Circles; "polar regions" |
equatorialadjective tropical, hot, oppressive, humid, torrid, sultry, sweltering the dense forests of the equatorial regionsTranslationsequator (iˈkweitə) noun (with the) an imaginary line (or one drawn on a map etc) passing round the globe, at an equal distance from the North and South poles. Singapore is almost on the equator. 赤道 赤道equatorial (ekwəˈtoːriəl) adjective of or near the equator. an equatorial climate. 赤道的 赤道的equatorial
equatorial1. of, like, or existing at or near the equator 2. Astronomy of or referring to the celestial equator Equatorial a lens or mirror telescope on a parallactic, or equatorial, mounting (seeTELESCOPE MOUNTING). A clock mechanism rotates the telescope around a polar axis at a rate of one rotation per 24 sidereal hours, so that the celestial object being observed, which moves because of the apparent diurnal rotation of the celestial sphere, remains in the field of view of the telescope. Graduated circles with measuring devices are secured to the axes to direct the telescope at the celestial object according to its hour angle and declination and to enable the approximate determination of its coordinates. Auxiliary astronomical tubes mounted on the primary one, called the finder and the guide, are used to locate the necesssary object and to keep the instrument directed at it during photography. Equatorials may be visual (equipped with an ocular that has a micrometer for differential measurements) or photographic (with plateholders). (SeeASTRONOMICAL INSTRUMENTS AND DEVICES.) equatorial
e·qua·to·ri·al (ē'kwă-tō'rē-ăl), Situated, like the earth's equator, equidistant from either end.equator [L. aequator] A line encircling a round body and equidistant from both poles. equatorial, adjectiveequator of cellThe boundary of a plane through which the division of a cell occurs.equator of crystalline lensThe line that marks the junction of the anterior and posterior surfaces of the crystalline lens. The fibers of the suspensory ligament are attached to it. equator oculiAn imaginary line encircling the eyeball midway between the anterior and posterior poles.equatorial
Related to equatorial: Equatorial climate, Equatorial region, Equatorial mount, Equatorial CoordinatesSynonyms for equatorialadj tropicalSynonyms- tropical
- hot
- oppressive
- humid
- torrid
- sultry
- sweltering
Antonyms for equatorialnoun 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 itRelated Wordsadj of or existing at or near the geographic equatorAntonyms |