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Tetra- :: Tetra- () A combining form or prefix signifying four, as in tetrabasic, tetrapetalous..

Sesquibasic :: Sesquibasic (a.) Containing, or acting as, a base in the proportions of a sesqui compound..

Pyroxene :: Pyroxene (n.) A common mineral occurring in monoclinic crystals, with a prismatic angle of nearly 90¡, and also in massive forms which are often laminated. It varies in color from white to dark green and black, and includes many varieties differing in color and composition, as diopside, malacolite, salite, coccolite, augite, etc. They are all silicates of lime and magnesia with sometimes alumina and iron. Pyroxene is an essential constituent of many rocks, especially basic igneous rocks, as basa

Zincous :: Zincous (a.) Hence, formerly, basic, basylous, as opposed to chlorous..

Tribasic :: Tribasic (a.) Capable of neutralizing three molecules of a monacid base, or their equivalent; having three hydrogen atoms capable of replacement by basic elements on radicals; -- said of certain acids; thus, citric acid is a tribasic acid..

Basicerite :: Basicerite (n.) The second joint of the antennae of crustaceans.

Basicity :: Basicity (n.) The quality or state of being a base.

Basic :: Basic (a.) Said of crystalline rocks which contain a relatively low percentage of silica, as basalt..

Unisilicate :: Unisilicate (n.) A salt of orthosilicic acid, H4SiO4; -- so called because the ratio of the oxygen atoms united to the basic metals and silicon respectively is 1:1; for example, Mg2SiO4 or 2MgO.SiO2..

Tungsten :: Tungsten (n.) A rare element of the chromium group found in certain minerals, as wolfram and scheelite, and isolated as a heavy steel-gray metal which is very hard and infusible. It has both acid and basic properties. When alloyed in small quantities with steel, it greatly increases its hardness. Symbol W (Wolframium). Atomic weight, 183.6. Specific gravity, 18..

Phloramine :: Phloramine (n.) A basic amido derivative of phloroglucin, having an astringent taste..

Phthalic :: Phthalic (a.) Pertaining to, or designating, a dibasic acid obtained by the oxidation of naphthalene and allied substances..

Electro-negative :: Electro-negative (a.) Negative; nonmetallic; acid; -- opposed to positive, metallic, or basic..

Basicity :: Basicity (n.) The power of an acid to unite with one or more atoms or equivalents of a base, as indicated by the number of replaceable hydrogen atoms contained in the acid..

Tetratomic :: Tetratomic (a.) Having a valence of four; quadrivalent; tetravalent; sometimes, in a specific sense, having four hydroxyl groups, whether acid or basic..

Fluosilicate :: Fluosilicate (n.) A double fluoride of silicon and some other (usually basic) element or radical, regarded as a salt of fluosilicic acid; -- called also silicofluoride..

Basic :: Basic (a.) Relating to a base; performing the office of a base in a salt.

Bicarbonate :: Bicarbonate (n.) A carbonate in which but half the hydrogen of the acid is replaced by a positive element or radical, thus making the proportion of the acid to the positive or basic portion twice what it is in the normal carbonates; an acid carbonate; -- sometimes called supercarbonate..

Vanadium :: Vanadium (n.) A rare element of the nitrogen-phosphorus group, found combined, in vanadates, in certain minerals, and reduced as an infusible, grayish-white metallic powder. It is intermediate between the metals and the non-metals, having both basic and acid properties. Symbol V (or Vd, rarely). Atomic weight 51.2..

Quadribasic :: Quadribasic (a.) Same as Tetrabasic.

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