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Hexad :: Hexad (n.) An atom whose valence is six, and which can be theoretically combined with, substituted for, or replaced by, six monad atoms or radicals; as, sulphur is a hexad in sulphuric acid. Also used as an adjective..

Multivalence :: Multivalence (n.) Quality, state, or degree, of a multivalent element, atom, or radical..

Salicyl :: Salicyl (n.) The hypothetical radical of salicylic acid and of certain related compounds.

Pentad :: Pentad (n.) Any element, atom, or radical, having a valence of five, or which can be combined with, substituted for, or compared with, five atoms of hydrogen or other monad; as, nitrogen is a pentad in the ammonium compounds..

Intransigentes :: Intransigentes (n. pl.) The extreme radicals; the party of the irreconcilables.

Nitroso- :: Nitroso- () (/ / /). (Chem.) A prefix (also used adjectively) designating the group or radical NO, called the nitroso group, or its compounds..

Vanadyl :: Vanadyl (n.) The hypothetical radical VO, regarded as a characterized residue of certain vanadium compounds..

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

Antimonite :: Antimonite (n.) A compound of antimonious acid and a base or basic radical.

Phosphonic :: Phosphonic (a.) Pertaining to, or designating, certain derivatives of phosphorous acid containing a hydrocarbon radical, and analogous to the sulphonic acid..

Triad :: Triad (n.) An element or radical whose valence is three.

Dyad :: Dyad (n.) An element, atom, or radical having a valence or combining power of two..

Diureide :: Diureide (n.) One of a series of complex nitrogenous substances regarded as containing two molecules of urea or their radicals, as uric acid or allantoin. Cf. Ureide..

Myricyl :: Myricyl (n.) A hypothetical radical regarded as the essential residue of myricin; -- called also melissyl.

Monacid :: Monacid (a.) Having one hydrogen atom replaceable by a negative or acid atom or radical; capable of neutralizing a monobasic acid; -- said of bases, and of certain metals..

Borate :: Borate (n.) A salt formed by the combination of boric acid with a base or positive radical.

Conservative :: Conservative (a.) Of or pertaining to a political party which favors the conservation of existing institutions and forms of government, as the Conservative party in England; -- contradistinguished from Liberal and Radical..

Carbide :: Carbide (n.) A binary compound of carbon with some other element or radical, in which the carbon plays the part of a negative; -- formerly termed carburet..

Radical :: Radical (a.) Hence: Of or pertaining to the root or origin; reaching to the center, to the foundation, to the ultimate sources, to the principles, or the like; original; fundamental; thorough-going; unsparing; extreme; as, radical evils; radical reform; a radical party..

Monatomic :: Monatomic (adv.) Having the equivalence or replacing power of an atom of hydrogen; univalent; as, the methyl radical is monatomic..

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