from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Of or relating to three unequal crystal axes, two of which intersect obliquely and are perpendicular to the third.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having three unequal axes with two perpendicular and one oblique intersections.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Having one oblique intersection; -- said of that system of crystallization in which the vertical axis is inclined to one, but at right angles to the other, lateral axis. See crystallization.

from The Century Dictionary and Cyclopedia

  • In mineralogy, an epithet noting that system of crystallization in which the crystals are referred to three unequal axes, two of which intersect each other at an oblique angle, while they are at right angles to the third. See crystallography. Also monosymmetric, clinorhombic, hemiorthotype, monoclinometric, and monoclinohedric

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. having three unequal crystal axes with one oblique intersection


Sorry, no etymologies found.


  • The latter four minerals are polymorphs of quartz, meaning that they have the same chemical composition (silica), but different crystalline forms (tetragonal or monoclinic).


  • The stacking of the tetrahedral and octahedral sheets in the chrysotile structure has been shown to yield three types of chrysotile fibers: clino-chrysotile: monoclinic stacking of the layers, x parallel to fiber axis, most abundant formortho-chrysotile: orthorhombic stacking of the layers, x parallel to fiber axispara-chrysotile: two layer structure, 180° rotation of two-layer structures, y parallel to fiber axis

    Geology of asbestos

  • This insulin hexamer corresponds with the unit cell in the rhombohedral crystals first investigated and is the asymmetric unit in the monoclinic form which appears in the presence of phenol.

    Nobel Lecture The X-Ray Analysis Of Complicated Molecules

  • The crystals are monoclinic, P2I, with two molecules in the unit cell, and X-ray photographs, taken of them with copper Ka-radiation show very markedly the effects of anomalous dispersion

    Nobel Lecture The X-Ray Analysis Of Complicated Molecules

  • To prepare the pure base a very concentrated solution of this pure hydrochlorate is treated with an excess of a very concentrated solution of caustic soda, and pieces of caustic potash are added, whereupon the free alkaloid separates out at first as a colorless resinous stringy mass, which, however, upon standing, turns crystalline, forming monoclinic crystals similar to tartaric acid or glycocol.

    Scientific American Supplement, No. 315, January 14, 1882

  • The mineral brushite, CaHPO_4·2H_2O, which is isomorphous with the acid arsenate pharmacolite, CaHAsO_4·2H_2O, is an acid phosphate, and assumes monoclinic forms.

    Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"

  • _Calcium nitrate_, Ca (NO_3) _2·4H_2O, is a highly deliquescent salt, [v. 04 p. 0972] crystallizing in monoclinic prisms, and occurring in various natural waters, as an efflorescence in limestone caverns, and in the neighbourhood of decaying nitrogenous organic matter.

    Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"

  • Calcium metasilicate, CaSiO_3, occurs in nature as monoclinic crystals known as tabular spar or wollastonite; it may be prepared artificially from solutions of calcium chloride and sodium silicate.

    Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"

  • Having determined the identity in chemical composition of the crystals, it was thought that there might be a difference of form of the crystals in the various plants, from the fact that calcium oxalate crystallizes both in the tetragonal and the monoclinic systems.

    Scientific American Supplement, No. 829, November 21, 1891

  • The rhombic crystals that characterize sulphur at ordinary temperatures and pressures, give place to monoclinic crystals at 95.5 degrees C. Sulphur thus exists with two crystalline forms whose stability depends directly upon the temperature.

    Popular Science Monthly Oct, Nov, Dec, 1915 — Volume 86


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