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Valeryl :: Valeryl (n.) The hypothetical radical C5H9O, regarded as the essential nucleus of certain valeric acid derivatives..

Heptyl :: Heptyl (n.) A compound radical, C7H15, regarded as the essential radical of heptane and a related series of compounds..

Cetyl :: Cetyl (n.) A radical, C16H33, not yet isolated, but supposed to exist in a series of compounds homologous with the ethyl compounds, and derived from spermaceti..

Phosphoryl :: Phosphoryl (n.) The radical PO, regarded as the typical nucleus of certain compounds..

Root :: Root (v. t.) To plant and fix deeply in the earth, or as in the earth; to implant firmly; hence, to make deep or radical; to establish; -- used chiefly in the participle; as, rooted trees or forests; rooted dislike..

Para- :: Para- () A prefix denoting: (a) Likeness, similarity, or connection, or that the substance resembles, but is distinct from, that to the name of which it is prefixed; as paraldehyde, paraconine, etc.; also, an isomeric modification. (b) Specifically: (Organ. Chem.) That two groups or radicals substituted in the benzene nucleus are opposite, or in the respective positions 1 and 4; 2 and 5; or 3 and 6, as paraxylene; paroxybenzoic acid. Cf. Ortho-, and Meta-. Also used adjectively..

Ethenyl :: Ethenyl (n.) A trivalent hydrocarbon radical, CH3.C..

Thienyl :: Thienyl (n.) The hypothetical radical C4H3S, regarded as the essential residue of thiophene and certain of its derivatives..

Ultra :: Ultra (n.) One who advocates extreme measures; an ultraist; an extremist; a radical.

Radical :: Radical (n.) A radical quantity. See under Radical, a..

Derivative :: Derivative (a.) Obtained by derivation; derived; not radical, original, or fundamental; originating, deduced, or formed from something else; secondary; as, a derivative conveyance; a derivative word..

Ceryl :: Ceryl (n.) A radical, C27H55 supposed to exist in several compounds obtained from Chinese wax, beeswax, etc..

Radical :: Radical (a.) Of or pertaining to a radix or root; as, a radical quantity; a radical sign. See below..

Acetyl :: Acetyl (n.) A complex, hypothetical radical, composed of two parts of carbon to three of hydrogen and one of oxygen. Its hydroxide is acetic acid..

Acetate :: Acetate (n.) A salt formed by the union of acetic acid with a base or positive radical; as, acetate of lead, acetate of potash..

Diacid :: Diacid (a.) Divalent; -- said of a base or radical as capable of saturating two acid monad radicals or a dibasic acid. Cf. Dibasic, a., and Biacid..

Destructive :: Destructive (n.) One who destroys; a radical reformer; a destructionist.

Nonyl :: Nonyl (n.) The hydrocarbon radical, C9H19, derived from nonane and forming many compounds. Used also adjectively; as, nonyl alcohol..

Equivalent :: Equivalent (n.) A combining unit, whether an atom, a radical, or a molecule; as, in acid salt two or more equivalents of acid unite with one or more equivalents of base..

Bibasic :: Bibasic (a.) Having to hydrogen atoms which can be replaced by positive or basic atoms or radicals to form salts; -- said of acids. See Dibasic.

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