单词 | tetragonal |
释义 | tetragonaladj.n. A. adj. 1. Of or pertaining to a tetragon; having four angles; quadrangular. ΘΚΠ the world > space > shape > angularity > specific angular shape > [adjective] > quadrilateral four-nookedc1275 four-hernedc1290 quadrangular?a1425 four-corneredc1440 quadrangle1494 quadrivial1540 quadrangled1552 quadrilater?a1560 tetragonal1571 quadrangulate1592 quadranguled1592 quadrilateral1606 four-corner1640 tetragon1794 the world > relative properties > number > geometry > shape or figure > [adjective] > having specific property > having angles > having several angles tetragonal1571 multangular1606 tetragon1794 vigintiangular1822 multi-angular1842 1571 T. Digges in L. Digges's Geom. Pract.: Pantometria Defs. sig. T j v When any equiangle triangle, square, or Pentagonum is..described within a circle,..their sides are called the trigonall, tetragonall and pentagonall Cordes of that circle. 1668 Philos. Trans. 1667 (Royal Soc.) 2 627 Two Tetragonal Prismes of Tendons. 1874 E. Coues Birds Northwest 592 An elongated pyramid with a tetragonal base. 2. Botany and Zoology. Quadrangular in section, like a ‘square’ rod; tetraquetrous. ΘΚΠ the world > plants > part of plant > part defined by form or function > [adjective] > having particular number sides or angles tetragonal1753 tetragonous1760 tetraquetrous1882 the world > animals > animal body > general parts > [adjective] > four-sided tetragonal1875 1753 Chambers's Cycl. Suppl. at Leaf A leaf that has, instead of three ribs or edges, four or five, is..called tetragonal, pentagonal, &c. 1853 J. F. Royle Man. Materia Med. (ed. 2) 641 Norway Spruce Fir. Leaves scattered, tetragonal. 1875 C. C. Blake Zoology 109 The bill is elongate,..tetragonal, and acuminate. ΘΚΠ the world > the universe > planet > position of planet > aspect > [adjective] > quartile quartilea1500 quadrate1538 quadrant1582 quadrangle1601 tetragonal1646 1646 Sir T. Browne Pseudodoxia Epidemica iv. xii. 213 Reckoning on unto the seventh day, the Moone will be in a Tetragonall or Quadrate aspect, that is, 4. signes removed from that wherein the disease began. View more context for this quotation 4. Heraldry. Represented as quadrangular: see quot. ΘΚΠ society > communication > indication > insignia > heraldic devices collective > other heraldic representations > [adjective] > other miscellaneous attributes corded1486 labelled1570 sousant1595 flamant1607 flotant1610 imbrued1610 inflamed1610 scintillant1610 flambanta1661 perflant1678 fumant1828 picoté?1828 tetragonalc1828 varvelledc1828 cloué1869 indexed1885 fumid1889 staffed1891 c1828 W. Berry Encycl. Her. I. Gloss. Tetragonel Pyramids, piles are generally considered to represent wedges,..they are sometimes borne..square, in which latter case they may be termed square piles, or tetragonel pyramids reversed. 1889 C. N. Elvin Dict. Heraldry 122/1 Tetragonal Pyramids. 5. Crystallography. Applied to a system of crystallization in which the three axes are at right angles, the two lateral axes being equal, and the vertical of a different length. Also applied to (the structure and symmetry of) substances crystallizing in this system. ΘΚΠ the world > matter > chemistry > crystallography (general) > crystal (general) > crystal systems > [adjective] > tetragonal tetragonal1868 quadratic1875 1868 J. D. Dana Syst. Mineral. (ed. 5) Introd. 21 Crystallography..systems of crystallization... Having only the lateral axes equal. The Tetragonal and Hexagonal. 1878 H. P. Gurney Crystallogr. 38 If four symmetral planes only intersect in the same straight line it is called an axis of tetragonal symmetry. 1879 F. Rutley Study of Rocks ix. 77 Crystals belonging to the tetragonal and hexagonal systems are singly refractive when viewed in the direction of the principal crystallographic axis. 1886 Jrnl. Chem. Soc. 50 124 The author concludes that only the following allotropic modifications may be regarded as different:—Grey tin..; rhombic tin..; and tetragonal tin. 1912 Dana's Man. Mineral. (ed. 13) 36 The cross section of a crystal when viewed in the direction of the axis of tetragonal symmetry consists usually of a square or a truncated square. 1937 A. F. Rogers Introd. Study Minerals (ed. 3) i. 67 Interfacial angles in the prism zone are the same for corresponding faces of all tetragonal crystals. 1973 H. D. Megaw Crystal Struct. xii. 307 Several other modifications of the spinel structure have been reported. Cr2CuO4 has a different tetragonal structure, with approximately the same unit cell as Cr2NiO4. = tetragon n. 1. Obsolete. rare. ΘΚΠ the world > space > shape > angularity > specific angular shape > [noun] > quadrilateral quadranglea1398 tetragona1626 quadrilateral1648 tetragonal1684 the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > quadrilateral quadranglea1398 tetragon?1608 quadrilater1636 quadrilateral1648 tetragonal1684 1684 tr. H. C. Agrippa Vanity Arts & Sci. (new ed.) To Rdr. The intricate Geometrician will imprison me in his Triangles and Tetragonals. Derivatives teˈtragonally adv. in a tetragonal manner or form. ΘΚΠ the world > space > shape > angularity > specific angular shape > [adverb] > quadrilateral four-cornerwise1607 quadrangularly1673 tetragonally1888 1888 Cassell's Encycl. Dict. VII. Tetragonally. 1963 Q. Jrnl. Geol. Soc. 119 326 Tetragonally symmetrical flattened pumice lapilli. 1966 C. S. G. Phillips & R. J. P. Williams Inorg. Chem. II. xxv. 248 CuF2 has a tetragonally-distorted rutile structure. teˈtragonalness n. ΘΚΠ the world > space > shape > angularity > specific angular shape > [noun] > quadrilateral > quality quadrangulateness1598 tetragonalness1727 the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > quadrilateral > quality of tetragonalness1727 1727 N. Bailey Universal Etymol. Eng. Dict. II Tetragonalness, the having four Corners, Squareness. This entry has not yet been fully updated (first published 1911; most recently modified version published online March 2022). < adj.n.1571 |
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