quadrantes

Plural of quadrans. quadrantid (kwod'ran-tid), n. [ adiating from [Another form January 2d and 3d, and radiating constellation Quadrans Muralis. quadrat (kwodʼrat), a . and n . of quadrate ; as a noun, in def. 1, quadrat , cadrat , a quadrat, lit. a square: see quadrate . ] I. a . See quadrate . II. n . 1. In printing , a blank type for the larger blank spaces in or at the end of printed lines, cast lower in height, so that it shall not be inked or impre ed: made in four forms for all text type-en, em, two-em, three-em. Usually abbreviated to quad . IMG:content-1408.png:[blocks in formation] The low quadrat, for letterpre work, is about three fourths of an inch high; the high quadrat, for stereotype work, is about ten twelfths of an inch high. In the lower case, having fifty-four boxes, are disposed the small letters, together with the points, spaces, quad rats , etc. Ure, Dict., III. 643. 2. An instrument furnished with sights, a plummet, and an index, and used for measuring altitudes, but superseded by more perfect instruments in modern use. rical square, and line of shadows.-3. A series or set of four. Also called geomet quadrat a, n. Plural of quadratum. quadrate (kwod'rāt), a. and n. [Formerly also quadrat; E. quarry1 ), F. carré = Sp. cuadrato = Pg. quadrado = It. quadrato = D. kwadraat = G. Sw. quadrat quadratus, square (neut. quadratum, a square, quadrate), pp. of quadrare, make four-cornered, square, put in order, intr. be square, = Dan, kvadrat , a square; quadrate; ef. also squarel.] I. a. 1. Having four equal and parallel sides; square; arranged in a square; four-sided. And they followed in a quadrat array to the entent to destroy kyng Henry. rate. Hall's Union (1548), Hen. IV., f. 13. ( Hall i well .) And searching his books, [he] found a book of astronomy. with figures, some round, some triangle, some quad Foxe , Martyrs, an. 1558. 2. Square by being the product of a number multiplied into itself. Quadrate and cubical numbers. Sir T. Browne, Vulg. Err., iv. 12. 3t. Square, as typifying justice according to the Pythagoreans; well-balanced. IMG:content-1409.png:[blocks in formation] rate cartilages, small quadrangu lar cartilages often found in the nasal alæ. Quadrate gyrus or lobule. See gy rus, and cut under cerebral. Quadrate line, lobe, pronator, etc. See the nouns. Quadrate mus cle, in an at.: (a) The quadratus fe mor is, or square ap pa ia cy hi. he IMG:content-1410.png:[blocks in formation] S IMG:content-1411.png:[ocr errors] Left Quadrate Bone of an Eagle, outer side, a little enlarged. s, shaft or body of the bone; ap, pterygoid apophysis for muscular attachment; pa, articular facet for pterygoid bone; ia, ea, inter nal and external condyles for articulation with the lower jaw, separated by tg, trochlear groove; qjc, quad rato jugal cup for articulation of quad rato jugal bone; hi, he, internal and external capitulum for articulation with groove. squamosal bone, separated by cg, capitular muscle of the femur, of man, one of the six muscles collectively known in human anatomy as the rotatores femoris, arising from the ischium and pa ing to the inter trochanteric part of the femur, which bone it rotates outward. (b) The quadratus lumborum, or square muscle of the loins, lying on each side of the lumbar region, between the lower ribs and the pelvis. (c) The square muscle of the chin, which draws down the lower commonly called depre or labii inferior is. (d) The quadratus nicti tantis, one of the two muscles (the other being the pyramidal) on the back of the eyeball of birds, etc., subserving the movements of the nictitating membrane, or third eyelid. See third cut under eye1. II. n. 1. A plane figure with four equal sides and four equal angles; a square. The one imperfect, mortall, fœminine, Th' other immortall, perfect, masculine; And twixt them both a quadrate was the base, Proportiond equally by seven and nine. Spenser, F. Q., II. ix. 22. The powers militant in mighty quadrate join'd. Milton , P. L., vi. 62. 2. In astrol., an aspect of two heavenly bodies in which they are distant from each other ninety degrees, or the quarter of a circle; quartile. -3. In zoöl. and an at.: ( a ) The os quadratum, or quadrate bone (see I.); the os ped i cell a tum, or pedicellate bone; the suspensorium, or suspender bone of the mandible, or that one which is in connection with the lower jaw, in vertebrates below mammals. Also called by Owen and others the tympanic bone, and considered to represent that bone of a mammal; by most zoölogists now identified with the malleus or greater part of the malleus of Mamma lia, formed about the proximal extremity of the Meckelion cartilage. In birds and reptiles the quadrate is a remarkably distinct bone, generally shaped something like an anvil or a molar tooth, with normally four separate movable articulations-with the squamosal above, the mandible below, the pterygoid internally, and the quad rato jugal externally. Such vertebrates are hence called Quadra tifera. (See cuts under Gallinæ, and quadrate, a.) Below reptiles the quadrate or its equivalent a umes other characters, and its homologies are then disputed; so the bone which has at any rate the same function, that of suspending the lower jaw to the skull, is usually called by another name. See epitympanic and hyomandibular, and cuts under hyoid and pal a to quadrate. See also cuts under Python, poison - fang, Crotal us, Petromyzon, teleost, pal a to quadrate, and acrodont. (b) Any quadrate muscle.-4. In musical notation: (a) Same as natural,: so called because derived from B quadratum (which see, under B ). (b) Same as breve, 1. quadrate (kwod'rat), v.; pret. and pp. quad rated, ppr. quadrating. [ It. quadrare = Pg. quadrar = Sp. cuadrar = F. cadrer, OF. quadrer, > E. quader1, q. v.), make four-cornered, square: see quadrate, a. and n.] I.t trans. 1. To square; adjust; trim, as a gun on its carriage.-2. Το divide into four equal parts; quarter. Moor, Hindu Pantheon (1810), p. 249. II. in trans . To square; fit; suit; agree: followed by with . One that.. has a few general rules, which, like mechanical instruments, he applies to the works of every writer, and as they quadrate with them pronounces the author perfect or defective. Add is on , Sir Timothy Tittle. But we should have to make our language over from the beginning, if we would have it quadrate with other languages, F. Hall , False Philol., p. 85. The Moralist tells us that a quadrat solid wise Man Howell, Letters, I. vi. 58. 44. Fitted; suited; applicable. The word consumption, being applicable... to a true and bastard consumption, requires a generical description quadrate to both. Harvey , Consumptions. 5. In her., of square form, or having square corners: thus, a cro quadrate in the center has four rectangular projections in its reëntrant In quadrature. What time the moon is quadrated in Heaven. Poe , Al Aaraaf, ii. quadrat i, n. Plural of quadratus . quadratic (kwod-ratʼik), a . and n . [ quadrate + -ic .] I. a. 1. In alg ., involving the square and no higher power of the unknown quantity or variable of the second degree; of two di- quadratic mensions.-2. In crystal., tetragonal or dimetric: applied to the system that includes the square prism and related forms. See crystal lography.- Quadratic equation, group, logarithm, mean, modulus, etc. See the nouns. - Quadratic figure, a figure of two dimensions; a superficial figure. See cubical.-Quadratic reciprocity, the relation between any two prime numbers expre ed by the law of reciprocity (which see, under law1 ). - Quadratic residue, a number left as remainder after dividing some square number by a given modulus to which the quadratic residue is said to belong. Thus, 1, 3, 4, 5, and 9 are quadratic residues of 11, for 1 = 12 -0.11, 3 = 52 - 2.11, 4 = 92-7.11, etc.; but 2, 6, 7, 8, and 10 are quadratic non-residues of 11. II. n. 1. In alg ., an equation in which the highest power of the unknown quantity is the second, the general form being IMG:content-1412.png:[blocks in formation] 2. pl. That branch of algebra which treats of quadratic equations. - Adfected quadratic, a quadratic equation having a term containing the unknown to the first degree, and another not containing the unknown. -Simple quadratic. See simple. quadratically (kwod-rat'i-kal-i), adv. To the second degree. - To multiply quadratically, to raise to the second power. Quadrat if era (kwod-rā-tif'e-rä), n. pl. [NL., neut. pl. of quadrat i fer: see quadrat i fer ous.] Those vertebrates which have a distinct quadrate bone, as birds and reptiles; a series of Vertebrata intermediate between the higher Mallei fer a (mammals) and the lower Lyrifera (fishes proper and selachians). quadrat i fer ous (kwod-rā-tif'e-rus), a. [ quadrat i form is (kwod-rā-ti-fôr'mis), n.; pl. quadrat i formes (-mēz). [NL.,