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Nonmetal :: Nonmetal (n.) Any one of the set of elements which, as contrasted with the metals, possess, produce, or receive, acid rather than basic properties; a metalloid; as, oxygen, sulphur, and chlorine are nonmetals..

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..

Erythrite :: Erythrite (n.) A colorless crystalline substance, C4H6.(OH)4, of a sweet, cooling taste, extracted from certain lichens, and obtained by the decomposition of erythrin; -- called also erythrol, erythroglucin, erythromannite, pseudorcin, cobalt bloom, and under the name phycite obtained from the alga Protococcus vulgaris. It is a tetrabasic alcohol, corresponding to glycol and glycerin..

Monsel''s Salt :: Monsel's salt () A basic sulphate of iron; -- so named from Monsel, a Frenchman..

Chlorhydrin :: Chlorhydrin (n.) One of a class of compounds formed from certain polybasic alcohols (and especially glycerin) by the substitution of chlorine for one or more hydroxyl groups.

Gynobasic :: Gynobasic (a.) Pertaining to, or having, a gynobase..

Hexabasic :: Hexabasic (a.) Having six hydrogen atoms or six radicals capable of being replaced or saturated by bases; -- said of acids; as, mellitic acid is hexabasic..

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

Boride :: Boride (n.) A binary compound of boron with a more positive or basic element or radical; -- formerly called boruret.

Monamine :: Monamine (n.) A basic compound containing one amido group; as, methyl amine is a monamine..

Caesium :: Caesium (n.) A rare alkaline metal found in mineral water; -- so called from the two characteristic blue lines in its spectrum. It was the first element discovered by spectrum analysis, and is the most strongly basic and electro-positive substance known. Symbol Cs. Atomic weight 132.6..

Negative :: Negative (a.) Metalloidal; nonmetallic; -- contracted with positive or basic; as, the nitro group is negative..

Tetrazone :: Tetrazone (n.) Any one of a certain series of basic compounds containing a chain of four nitrogen atoms; for example, ethyl tetrazone, (C2H5)2N.N2.N(C2H5)2, a colorless liquid having an odor of leeks..

Polybasic :: Polybasic (a.) Capable of neutralizing, or of combining with, several molecules of a monacid base; having several hydrogen atoms capable of being replaced by basic radicals; -- said of certain acids; as, sulphuric acid is polybasic..

Neutral :: Neutral (a.) Having neither acid nor basic properties; unable to turn red litmus blue or blue litmus red; -- said of certain salts or other compounds. Contrasted with acid, and alkaline..

Positive :: Positive (a.) Hence, basic; metallic; not acid; -- opposed to negative, and said of metals, bases, and basic radicals..

Acidic :: Acidic (a.) Containing a high percentage of silica; -- opposed to basic.

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

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

Nonacid :: Nonacid (a.) Destitute of acid properties; hence, basic; metallic; positive; -- said of certain atoms and radicals..

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