Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of quadrant is as below...

Sinical :: Sinical (a.) Of or pertaining to a sine; employing, or founded upon, sines; as, a sinical quadrant..

Gunter''s Scale :: Gunter's scale () A scale invented by the Rev. Edmund Gunter (1581-1626), a professor of astronomy at Gresham College, London, who invented also Gunter's chain, and Gunter's quadrant..

Backstaff :: Backstaff (n.) An instrument formerly used for taking the altitude of the heavenly bodies, but now superseded by the quadrant and sextant; -- so called because the observer turned his back to the body observed..

Quadrant :: Quadrant (n.) An instrument for measuring altitudes, variously constructed and mounted for different specific uses in astronomy, surveying, gunnery, etc., consisting commonly of a graduated arc of 90�, with an index or vernier, and either plain or telescopic sights, and usually having a plumb line or spirit level for fixing the vertical or horizontal direction..

Altimeter :: Altimeter (n.) An instrument for taking altitudes, as a quadrant, sextant, etc..

Arc :: Arc (n.) A curvature in the shape of a circular arc or an arch; as, the colored arc (the rainbow); the arc of Hadley's quadrant..

Quadrantal :: Quadrantal (n.) A cubical vessel containing a Roman cubic foot, each side being a Roman square foot; -- used as a measure..

Sextant :: Sextant (n.) An instrument for measuring angular distances between objects, -- used esp. at sea, for ascertaining the latitude and longitude. It is constructed on the same optical principle as Hadley's quadrant, but usually of metal, with a nicer graduation, telescopic sight, and its arc the sixth, and sometimes the third, part of a circle. See Quadrant..

Pelecoid :: Pelecoid (n.) A figure, somewhat hatched-shaped, bounded by a semicircle and two inverted quadrants, and equal in area to the square ABCD inclosed by the chords of the four quadrants..

Triquadrantal :: Triquadrantal (a.) Having three quadrants; thus, a triquadrantal triangle is one whose three sides are quadrants, and whose three angles are consequently right angles..

Antimeter :: Antimeter (n.) A modification of the quadrant, for measuring small angles..

Quadrant :: Quadrant (n.) One of the four parts into which a plane is divided by the coordinate axes. The upper right-hand part is the first quadrant; the upper left-hand part the second; the lower left-hand part the third; and the lower right-hand part the fourth quadrant.

Vane :: Vane (n.) One of the sights of a compass, quadrant, etc..

Quadrantal :: Quadrantal (n.) A cube.

Trirectangular :: Trirectangular (a.) Having three right angles. See Triquadrantal.

Alidade :: Alidade (n.) The portion of a graduated instrument, as a quadrant or astrolabe, carrying the sights or telescope, and showing the degrees cut off on the arc of the instrument.

Mural :: Mural (a.) Of or pertaining to a wall; being on, or in, a wall; growing on, or against, a wall; as, a mural quadrant..

Quadrantal :: Quadrantal (a.) Of or pertaining to a quadrant; also, included in the fourth part of a circle; as, quadrantal space..

Quadrant :: Quadrant (n.) The quarter of a circle, or of the circumference of a circle, an arc of 90�, or one subtending a right angle at the center..

Bow :: Bow (v. t.) A rude sort of quadrant formerly used for taking the sun's altitude at sea.

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