- wedge-shaped crystal
- кристалл клиновидной формы
Большой англо-русский и русско-английский словарь. 2001.
wedge-shaped crystal
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Crystal habit — This article is about the descriptive term used in mineralogy. For the addictive drug, see crystal methamphetamine. Pyrite sun (or dollar) in laminated shale matrix. Between tightly spaced layers of shale, the aggregate was forced to grow in a… … Wikipedia
sphenoid — [sfē′noid΄] adj. [ModL sphenoides < Gr sphēnoeides: see SPHENE & OID] 1. wedge shaped 2. Anat. designating or of the wedge shaped compound bones of the skull: see SKULL: Also sphenoidal n. 1. the sphenoid bone … English World dictionary
Malayaite — General Category Silicate mineral Chemical formula CaSnO[SiO4] Crystal symmetry Monoclinic prismatic (2/m) Unit cell a = 7.15 Å, b = 8.90 Å, c … Wikipedia
Disphenoid — The tetragonal and digonal disphenoids can be positioned inside a cuboid bisecting two opposite faces. All four faces are isosceles triangles. Both have four equal edges going around the sides. The digonal has two sets of isosceles triangle faces … Wikipedia
disphenoid — 1. adjective a) Describing a wedge shaped crystal form of the tetragonal or orthorhombic system. b) Describing a crystal form bounded by eight scalene triangles arranged in pairs, constituting a tetragonal scalenohedron. 2 … Wiktionary
Sphenoid — Sphe noid, n. 1. (Crystallog.) A wedge shaped crystal bounded by four equal isosceles triangles. It is the hemihedral form of a square pyramid. [1913 Webster] 2. (Anat.) The sphenoid bone. [1913 Webster] … The Collaborative International Dictionary of English
MHD generator — Energy portal The MHD (magnetohydrodynamic) generator or dynamo transforms thermal energy or kinetic energy directly into electricity. MHD generators are different from traditional electric generators in that they can operate at high tempera … Wikipedia
Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… … Universalium
architecture — /ahr ki tek cheuhr/, n. 1. the profession of designing buildings, open areas, communities, and other artificial constructions and environments, usually with some regard to aesthetic effect. Architecture often includes design or selection of… … Universalium
Siamese (cat) — Siamese A Lilac point Siamese Origin Thailand … Wikipedia
permafrost — /perr meuh frawst , frost /, n. (in arctic or subarctic regions) perennially frozen subsoil. Also called pergelisol. [1943; PERMA(NENT) + FROST] * * * Perennially frozen earth, with a temperature below 32 °F (0 °C) continuously for two years or… … Universalium
