Definition of Tetragona. Meaning of Tetragona. Synonyms of Tetragona

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Definition of Tetragona

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Tetragonal
Tetragonal Te*trag"o*nal, a. 1. (Geom.) Of or pertaining to a tetragon; having four angles or sides; thus, the square, the parallelogram, the rhombus, and the trapezium are tetragonal fingers. 2. (Bot.) Having four prominent longitudinal angles. 3. (Crystallog.) Designating, or belonging to, a certain system of crystallization; dimetric. See Tetragonal system, under Crystallization.
Tetragonal trisoctahedron
Trisoctahedron Tris*oc`ta*he"dron, n. [Gr. ? thrice + FE. octahedron.] (Crystallog.) A solid of the isometric system bounded by twenty-four equal faces, three corresponding to each face of an octahedron. Tetragonal trisoctahedron, a trisoctahedron each face of which is a quadrilateral; called also trapezohedron and icositetrahedron. Trigonal trisoctahedron, a trisoctahedron each face of which is an isosceles triangle.
The Tetragonal or Dimetric system
Crystallization Crys`tal*li*za"tion (kr[i^]s`tal*l[i^]*z[=a]"sh[u^]n), n. [Cf. F. cristallization.] 1. (Chem. & Min.) The act or process by which a substance in solidifying assumes the form and structure of a crystal, or becomes crystallized. 2. The body formed by crystallizing; as, silver on precipitation forms arborescent crystallizations. Note: The systems of crystallization are the several classes to which the forms are mathematically referable. They are most simply described according to the relative lengths and inclinations of certain assumed lines called axes; but the real distinction is the degree of symmetry characterizing them. 1. The Isometric, or Monometric, system has the axes all equal, as in the cube, octahedron, etc. 2. The Tetragonal, or Dimetric, system has a varying vertical axis, while the lateral are equal, as in the right square prism. 3. The Orthorhombic, or Trimetric, system has the three axes unequal, as in the rectangular and rhombic prism. In this system, the lateral axes are called, respectively, macrodiagonal and brachydiagonal. -- The preceding are erect forms, the axes intersecting at right angles. The following are oblique. 4. The Monoclinic system, having one of the intersections oblique, as in the oblique rhombic prism. In this system, the lateral axes are called respectively, clinodiagonal and orthodiagonal. 5. The Triclinic system, having all the three intersections oblique, as in the oblique rhomboidal prism. There is also: 6. The Hexagonal system (one division of which is called Rhombohedral), in which there are three equal lateral axes, and a vertical axis of variable length, as in the hexagonal prism and the rhombohedron. Note: The Diclinic system, sometimes recognized, with two oblique intersections, is only a variety of the Triclinic.

Meaning of Tetragona from wikipedia

- beebei (Schwarz, 1938) Tetragona clavipes (Fabricius, 1804) Tetragona dissecta Moure, 2000 Tetragona dorsalis (Smith, 1854) Tetragona essequiboensis (Schwarz...
- Nymphaea tetragona is an aquatic perennial, species of flowering plant commonly called pygmy waterlily and small white water lily, belonging to the family...
- Cr****ula tetragona is a succulent plant native to Southern Africa. It is widely distributed from the Orange River boundary of Namaqualand to beyond the...
- C. tetragona may refer to: C****iope tetragona, the Arctic bell-heather, a plant species Clidemia tetragona, a species in the genus Clidemia Cr****ula tetragona...
- Thysanoptyx tetragona is a moth in the subfamily Arctiinae. It was described by Francis Walker in 1854. It is found in Bangladesh and Sikkim in India...
- Peperomia tetragona is a species of plant in the genus Peperomia native to South America. Its range is known to be from Ecuador, Peru, and Paraguay to...
- C****iope tetragona (common names include Arctic bell-heather, white Arctic mountain heather and Arctic white heather) is a plant native to the high Arctic...
- Raillietina tetragona (synonym Taenia tetragona Molin) is a parasitic tapeworm belonging to the class Cestoda. It is a cosmopolitan helminth of the small...
- Veronica tetragona, synonym Hebe tetragona, is a subalpine plant of the family Plantaginaceae, which is endemic to New Zealand. Veronica tetragona can grow...
- Calytrix tetragona is an Australian shrub in the myrtle family. Common names include common fringe-myrtle. It is a widespread plant growing in many parts...