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

Sloop :: Sloop (n.) A vessel having one mast and fore-and-aft rig, consisting of a boom-and-gaff mainsail, jibs, staysail, and gaff topsail. The typical sloop has a fixed bowsprit, topmast, and standing rigging, while those of a cutter are capable of being readily shifted. The sloop usually carries a centerboard, and depends for stability upon breadth of beam rather than depth of keel. The two types have rapidly approximated since 1880. One radical distinction is that a slop may carry a centerboard. See
Quadrivalent :: Quadrivalent (a.) Having a valence of four; capable of combining with, being replaced by, or compared with, four monad atoms; tetravalent; -- said of certain atoms and radicals; thus, carbon and silicon are quadrivalent elements..
Linkage :: Linkage (n.) Manner of linking or of being linked; -- said of the union of atoms or radicals in the molecule.
Boride :: Boride (n.) A binary compound of boron with a more positive or basic element or radical; -- formerly called boruret.
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..
Lipyl :: Lipyl (n.) A hypothetical radical of glycerin.
Octyl :: Octyl (n.) A hypothetical hydrocarbon radical regarded as an essential residue of octane, and as entering into its derivatives; as, octyl alcohol..
Glyceryl :: Glyceryl (n.) A compound radical, C3H5, regarded as the essential radical of glycerin. It is metameric with allyl. Called also propenyl..
Interscendent :: Interscendent (a.) Having exponents which are radical quantities; -- said of certain powers; as, xÃ2, or xÃa..
Red-hot :: Red-hot (a.) Red with heat; heated to redness; as, red-hot iron; red-hot balls. Hence, figuratively, excited; violent; as, a red-hot radical..
Metalammonium :: Metalammonium (n.) A hypothetical radical derived from ammonium by the substitution of metallic atoms in place of hydrogen.
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..
Whig :: Whig (n.) One of a political party which grew up in England in the seventeenth century, in the reigns of Charles I. and II., when great contests existed respecting the royal prerogatives and the rights of the people. Those who supported the king in his high claims were called Tories, and the advocates of popular rights, of parliamentary power over the crown, and of toleration to Dissenters, were, after 1679, called Whigs. The terms Liberal and Radical have now generally superseded Whig in Englis
Menthyl :: Menthyl (n.) A compound radical forming the base of menthol.
Succise :: Succinyl (n.) A hypothetical radical characteristic of succinic acid and certain of its derivatives.
Butyl :: Butyl (n.) A compound radical, regarded as butane, less one atom of hydrogen..
Conjugate :: Conjugate (n.) A complex radical supposed to act the part of a single radical.
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..
Pentyl :: Pentyl (n.) The hypothetical radical, C5H11, of pentane and certain of its derivatives. Same as Amyl..
Tetrinic :: Tetrinic (a.) Of, pertaining to, or designating, a complex ketonic acid, C5H6O3, obtained as a white crystalline substance; -- so called because once supposed to contain a peculiar radical of four carbon atoms. Called also acetyl-acrylic acid..
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