Definition of radical

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Radical (n.) Specifically, a group of two or more atoms, not completely saturated, which are so linked that their union implies certain properties, and are conveniently regarded as playing the part of a single atom; a residue; -- called also a compound radical. Cf. Residue..

Lern More About Radical

Steatite :: Stearyl (n.) The hypothetical radical characteristic of stearic acid.
Ternary :: Ternary (a.) Containing, or consisting of, three different parts, as elements, atoms, groups, or radicals, which are regarded as having different functions or relations in the molecule; thus, sodic hydroxide, NaOH, is a ternary compound..
Borate :: Borate (n.) A salt formed by the combination of boric acid with a base or positive radical.
Glyceryl :: Glyceryl (n.) A compound radical, C3H5, regarded as the essential radical of glycerin. It is metameric with allyl. Called also propenyl..
Stythe :: Styryl (n.) A hypothetical radical found in certain derivatives of styrolene and cinnamic acid; -- called also cinnyl, or cinnamyl..
Methyl :: Methyl (n.) A hydrocarbon radical, CH3, not existing alone but regarded as an essential residue of methane, and appearing as a component part of many derivatives; as, methyl alcohol, methyl ether, methyl amine, etc..
Sulphionide :: Sulphion (n.) A hypothetical radical, SO4, regarded as forming the acid or negative constituent of sulphuric acid and the sulphates in electrolytic decomposition; -- so called in accordance with the binary theory of salts..
Octoyl :: Octoyl (n.) A hypothetical radical (C8H15O), regarded as the essential residue of octoic acid..
Extreme :: Extreme (a.) Radical; ultra; as, extreme opinions..
Nitrile :: Nitrile (n.) Any one of a series of cyanogen compounds; particularly, one of those cyanides of alcohol radicals which, by boiling with acids or alkalies, produce a carboxyl acid, with the elimination of the nitrogen as ammonia..
Iconoclast :: Iconoclast (n.) One who exposes or destroys impositions or shams; one who attacks cherished beliefs; a radical.
Ambulacrum :: Ambulacrum (n.) One of the radical zones of echinoderms, along which run the principal nerves, blood vessels, and water tubes. These zones usually bear rows of locomotive suckers or tentacles, which protrude from regular pores. In star fishes they occupy the grooves along the under side of the rays..
Nonyl :: Nonyl (n.) The hydrocarbon radical, C9H19, derived from nonane and forming many compounds. Used also adjectively; as, nonyl alcohol..
Dibasic :: Dibasic (a.) Having two acid hydrogen atoms capable of replacement by basic atoms or radicals, in forming salts; bibasic; -- said of acids, as oxalic or sulphuric acids. Cf. Diacid, Bibasic..
Chloride :: Chloride (n.) A binary compound of chlorine with another element or radical; as, chloride of sodium (common salt)..
Phenylene :: Phenylene (n.) A hypothetic radical (C6H4) occurring in certain derivatives of benzene; as, phenylene diamine..
Radicalism :: Radicalism (n.) The quality or state of being radical; specifically, the doctrines or principles of radicals in politics or social reform..
Deutoxide :: Deutoxide (n.) A compound containing in the molecule two atoms of oxygen united with some other element or radical; -- usually called dioxide, or less frequently, binoxide..
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..
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..
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