Definition of Tetra. Meaning of Tetra. Synonyms of Tetra

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Definition of Tetra

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Conjoint tetrachords
Conjoint Con*joint", a. [F. conjoint, p. p. of conjoindre. See Conjoin, and cf. Conjunct.] United; connected; associated. ``Influence conjoint.' --Glover. Conjoint degrees (Mus.), two notes which follow each other immediately in the order of the scale, as ut and re. --Johnson. Conjoint tetrachords (Mus.), two tetrachords or fourths, where the same note is the highest of one and the lowest of the other; -- also written conjunct.
Disjunct tetrachords
Disjunct Dis*junct", a. [L. disjunctus, p. p. of disjungere to disjoin. See Disjoin, and cf. Disjoint.] 1. Disjoined; separated. [R.] 2. (Zo["o]l.) Having the head, thorax, and abdomen separated by a deep constriction. Disjunct tetrachords (Mus.), tetrachords so disposed to each other that the gravest note of the upper is one note higher than the acutest note of the other.
Erica Tetralix
Heather Heath"er (?; 277. This is the only pronunciation in Scotland), n. [See Heath.] Heath. [Scot.] Gorse and grass And heather, where his footsteps pass, The brighter seem. --Longfellow. Heather bell (Bot.), one of the pretty subglobose flowers of two European kinds of heather (Erica Tetralix, and E. cinerea).
G Tetrahit
Hemp Hemp (h[e^]mp), n. [OE. hemp, AS. henep, h[ae]nep; akin to D. hennep, OHG. hanaf, G. hanf, Icel. hampr, Dan. hamp, Sw. hampa, L. cannabis, cannabum, Gr. ka`nnabis, ka`nnabos; cf. Russ. konoplia, Skr. [,c]a[.n]a; all prob. borrowed from some other language at an early time. Cf. Cannabine, Canvas.] 1. (Bot.) A plant of the genus Cannabis (C. sativa), the fibrous skin or bark of which is used for making cloth and cordage. The name is also applied to various other plants yielding fiber. 2. The fiber of the skin or rind of the plant, prepared for spinning. The name has also been extended to various fibers resembling the true hemp. African hemp, Bowstring hemp. See under African, and Bowstring. Bastard hemp, the Asiatic herb Datisca cannabina. Canada hemp, a species of dogbane (Apocynum cannabinum), the fiber of which was used by the Indians. Hemp agrimony, a coarse, composite herb of Europe (Eupatorium cannabinum), much like the American boneset. Hemp nettle, a plant of the genus Galeopsis (G. Tetrahit), belonging to the Mint family. Indian hemp. See under Indian, a. Manila hemp, the fiber of Musa textilis. Sisal hemp, the fiber of Agave sisalana, of Mexico and Yucatan. Sunn hemp, a fiber obtained from a leguminous plant (Crotalaria juncea). Water hemp, an annual American weed (Acnida cannabina), related to the amaranth.
Halesia tetraptera
Silver Sil"ver, a. 1. Of or pertaining to silver; made of silver; as, silver leaf; a silver cup. 2. Resembling silver. Specifically: (a) Bright; resplendent; white. ``Silver hair.' --Shak. Others, on silver lakes and rivers, bathed Their downy breast. --Milton. (b) Precious; costly. (c) Giving a clear, ringing sound soft and clear. ``Silver voices.' --Spenser. (d) Sweet; gentle; peaceful. ``Silver slumber.' --Spenser. American silver fir (Bot.), the balsam fir. See under Balsam. Silver age (Roman Lit.), the latter part (a. d. 14-180) of the classical period of Latinity, -- the time of writers of inferior purity of language, as compared with those of the previous golden age, so-called. Silver-bell tree (Bot.), an American shrub or small tree (Halesia tetraptera) with white bell-shaped flowers in clusters or racemes; the snowdrop tree. Silver bush (Bot.), a shrubby leguminous plant (Anthyllis Barba-Jovis) of Southern Europe, having silvery foliage. Silver chub (Zo["o]l.), the fallfish. Silver eel. (Zo["o]l.) (a) The cutlass fish. (b) A pale variety of the common eel. Silver fir (Bot.), a coniferous tree (Abies pectinata) found in mountainous districts in the middle and south of Europe, where it often grows to the height of 100 or 150 feet. It yields Burgundy pitch and Strasburg turpentine. Silver foil, foil made of silver. Silver fox (Zo["o]l.), a variety of the common fox (Vulpes vulpes, variety argenteus) found in the northern parts of Asia, Europe, and America. Its fur is nearly black, with silvery tips, and is highly valued. Called also black fox, and silver-gray fox. Silver gar. (Zo["o]l.) See Billfish (a) . Silver grain (Bot.), the lines or narrow plates of cellular tissue which pass from the pith to the bark of an exogenous stem; the medullary rays. In the wood of the oak they are much larger than in that of the beech, maple, pine, cherry, etc. Silver grebe (Zo["o]l.), the red-throated diver. See Illust. under Diver. Silver hake (Zo["o]l.), the American whiting. Silver leaf, leaves or sheets made of silver beaten very thin. Silver lunge (Zo["o]l.), the namaycush. Silver moonfish.(Zo["o]l.) See Moonfish (b) . Silver moth (Zo["o]l.), a lepisma. Silver owl (Zo["o]l.), the barn owl. Silver perch (Zo["o]l.), the mademoiselle, 2. Silver pheasant (Zo["o]l.), any one of several species of beautiful crested and long-tailed Asiatic pheasants, of the genus Euplocamus. They have the tail and more or less of the upper parts silvery white. The most common species (E. nychtemerus) is native of China. Silver plate, domestic utensils made of silver.
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.
Icositetrahedron I`co*si*tet`ra*he"dron, n. [Gr. ? twenty + ?, combining form of ? four + ? seat, base.] (Crystallog.) A twenty-four-sided solid; a tetragonal trisoctahedron or trapezohedron.
Manis tetradactyla
Phatagin Phat"a*gin, n. [Cf. Gr. ?; perhaps from native name.] (Zo["o]l.) The long-tailed pangolin (Manis tetradactyla); -- called also ipi.
Pseudotetramera Pseu`do*te*tram"e*ra, n. pl. [NL. See Pseudo-, and Tetramerous.] (Zo["o]l.) A division of beetles having the fifth tarsal joint minute and obscure, so that there appear to be but four joints. -- Pseu`do*te*tram"er*al, a.
Pseudotetramera Pseu`do*te*tram"e*ra, n. pl. [NL. See Pseudo-, and Tetramerous.] (Zo["o]l.) A division of beetles having the fifth tarsal joint minute and obscure, so that there appear to be but four joints. -- Pseu`do*te*tram"er*al, a.
Regular tetrahedron
Tetrahedron Tet`ra*he"dron, n. [Tetra- + Gr. ? seat, base, fr. ? to sit.] (Geom.) A solid figure inclosed or bounded by four triangles. Note: In crystallography, the regular tetrahedron is regarded as the hemihedral form of the regular octahedron. Regular tetrahedron (Geom.), a solid bounded by four equal equilateral triangles; one of the five regular solids.
Suricata tetradactyla
Zenick e"nick, n. (Zo["o]l.) A South African burrowing mammal (Suricata tetradactyla), allied to the civets. It is grayish brown, with yellowish transverse stripes on the back. Called also suricat.
Tamandua tetradactyla
Tamandu Ta*man"du, n. [Sp., from the native name: cf. F. tamandua.] (Zo["o]l.) A small ant-eater (Tamandua tetradactyla) native of the tropical parts of South America. Note: It has five toes on the fore feet, an elongated snout, small ears, and short woolly hair. Its tail is stout and hairy at the base, tapering, and covered with minute scales, and is somewhat prehensile at the end. Called also tamandua, little ant-bear, fourmilier, and cagouare. The collared, or striped, tamandu (Tamandua bivittata) is considered a distinct species by some writers, but by others is regarded as only a variety.
Tetra- Tet"ra- [Gr. te`tra-, from te`sares, te`ttares, four. See Four.] 1. A combining form or prefix signifying four, as in tetrabasic, tetrapetalous. 2. (Chem.) A combining form (also used adjectively) denoting four proportional or combining parts of the substance or ingredient denoted by the term to which it is prefixed, as in tetra-chloride, tetroxide.
Tetrabasic Tet`ra*bas"ic, a. [Tetra- + basic.] (Chem.) Capable of neutralizing four molecules of a monacid base; having four hydrogen atoms capable of replacement by bases; quadribasic; -- said of certain acids; thus, normal silicic acid, Si(OH)4, is a tetrabasic acid.
Tetraboric Tet`ra*bor"ic, a. [Tetra- + boric.] (Chem.) Same as Pyroboric.
Pyroboric Pyr`o*bo"ric, a. [Pyro- + boric.] (Chem.) Pertaining to derived from, or designating, an acid, H2B4O7 (called also tetraboric acid), which is the acid ingredient of ordinary borax, and is obtained by heating boric acid.
Tetrabranchiata Tet`ra*bran`chi*a"ta, n. pl. [NL. See Tetra-, and Branchia.] (Zo["o]l.) An order of Cephalopoda having four gills. Among living species it includes only the pearly nautilus. Numerous genera and species are found in the fossil state, such as Ammonites, Baculites, Orthoceras, etc.
Tetrabranchiate Tet`ra*bran`chi*ate, a. [Tetra + branchiate.] (Zo["o]l.) Of or pertaining to the Tetrabranchiata. -- n. One of the Tetrabranchiata.
Tetracarpel Tet`ra*car"pel, a. [Tetra- + carpellary.] (Bot.) Composed of four carpels.
Tetracera alnifolia or potatoria
Water tree Wa"ter tree` (Bot.) A climbing shrub (Tetracera alnifolia, or potatoria) of Western Africa, which pours out a watery sap from the freshly cut stems.
Tetraceros quadricornis
Chikara Chi*ka"ra, n. [Hind.] (Zo["o]l.) (a) The goat antelope (Tragops Bennettii) of India. (b) The Indian four-horned antelope (Tetraceros quadricornis).
Tetrachotomous Tet`ra*chot"o*mous, a. [Gr. te`tracha in four parts + te`mnein to cut.] (Bot.) Having a division by fours; separated into four parts or series, or into series of fours.
Tetracid Tet*rac"id, a. [Tetra + acid.] (Chem.) Capable of neutralizing four molecules of a monobasic acid; having four hydrogen atoms capable of replacement ba acids or acid atoms; -- said of certain bases; thus, erythrine, C4H6(OH)4, is a tetracid alcohol.
Tetracoccous Tet`ra*coc"cous, a. [See Tetra-, and Coccus.] (Bot.) Having four cocci, or carpels.
Tetracolon Tet`ra*co"lon, n. [Gr. ? with four members; te`tra- (see Tetra-) + ? limb, member.] (Pros.) A stanza or division in lyric poetry, consisting of four verses or lines. --Crabb.
Tetracoralla Te`tra*co*ral"la, n. pl. [NL. See Tetra-, and Corallum.] (Paleon.) Same as Rugosa.
Tetractinellid Te*trac`ti*nel"lid, n. (Zo["o]l.) Any species of sponge of the division Tetractinellida. Also used adjectively.
Tetractinellida Te*trac`ti*nel"li*da, n. pl. [NL., from Gr. te`tra- tetra- + ?, ?, ray, spoke.] (Zo["o]l.) A division of Spongi[ae] in which the spicules are siliceous and have four branches diverging at right angles. Called also Tetractinellin[ae].
Tetractinellida Te*trac`ti*nel"li*da, n. pl. [NL., from Gr. te`tra- tetra- + ?, ?, ray, spoke.] (Zo["o]l.) A division of Spongi[ae] in which the spicules are siliceous and have four branches diverging at right angles. Called also Tetractinellin[ae].

Meaning of Tetra from wikipedia

- Tetra is the common name of many small freshwater characiform fishes. Tetras come from Africa, Central America, and South America, belonging to the biological...
- Terrestrial Trunked Radio (TETRA; formerly known as Trans-European Trunked Radio), a European standard for a trunked radio system, is a professional mobile...
- Tetra Pak is a Swedish-Swiss multinational food packaging and processing company with head offices in Lund, Sweden and Lausanne, Switzerland. The company...
- The neon tetra (Paracheirodon innesi) is a freshwater fish of the characin family (family Characidae) of order Characiformes. The type species of its...
- Tetra Brik is a brand name for a carton package produced by the Swedish packaging company Tetra Pak. Its shape is cubic or cuboid, and it is available...
- to: Tetra-, a numerical prefix that refers to four Tetra (company), a supplier of aquarium equipment and fish food Terrestrial Trunked Radio (TETRA), a...
- Tetra Tech, Inc. is an American Pasadena, California-based consulting and engineering services firm. The company provides consulting, engineering, program...
- The cardinal tetra (Paracheirodon axelrodi) is a freshwater fish of the characin family (family Characidae) of order Characiformes. It is native to the...
- Tetra Laval is a Swiss-domiciled multinational corporation of Swedish origin, with headquarters in Pully, Switzerland. The Tetra Laval Group provides packaging...
- The black tetra (Gymnocorymbus ternetzi), also known as the black skirt tetra, petticoat tetra, high-fin black skirt tetra, black widow tetra and blackamoor...