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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..

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.

Quadrible :: Quadrible (a.) Quadrable.

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..

Quarry :: Quarry (a.) Quadrate; square.

Quadrat :: Quadrat (n.) An old instrument used for taking altitudes; -- called also geometrical square, and line of shadows..

Quadrantes :: Quadrantes (pl. ) of Quadran.

Octant :: Octant (n.) An instrument for measuring angles (generally called a quadrant), having an arc which measures up to 9O¡, but being itself the eighth part of a circle. Cf. Sextant..

Quadrate :: Quadrate (a.) Square; even; balanced; equal; exact.

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

Forty-spot :: Forty-spot (n.) The Tasmanian forty-spotted diamond bird (Pardalotus quadragintus).

Semiquartile :: Semiquartile (n.) An aspect of the planets when distant from each other the half of a quadrant, or forty-five degrees, or one sign and a half..

Quarrel :: Quarrel (n.) Any small square or quadrangular membe.

#NAME? :: -trices (pl. ) of Quadratri.

Quadrate :: Quadrate (a.) The quadrate bone.

Quadrating :: Quadrating (p. pr. & vb. n.) of Quadrat.

Quadrans :: Quadrans (n.) The fourth of a penny; a farthing. See Cur.

Evection :: Evection () An inequality of the moon's motion is its orbit to the attraction of the sun, by which the equation of the center is diminished at the syzygies, and increased at the quadratures by about 1¡ 20'..

Subquadruple :: Subquadrate (a.) Nearly or approximately square; almost square.

Quadratic :: Quadratic (a.) Pertaining to terms of the second degree; as, a quadratic equation, in which the highest power of the unknown quantity is a square..

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