Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of radical is as below...

Ester :: Ester (n.) An ethereal salt, or compound ether, consisting of an organic radical united with the residue of any oxygen acid, organic or inorganic; thus the natural fats are esters of glycerin and the fatty acids, oleic, etc..

Radical :: Radical (a.) Belonging to, or proceeding from, the root of a plant; as, radical tubers or hairs..

Xanthogen :: Xanthogen (n.) The hypothetical radical supposed to be characteristic of xanthic acid.

Heptavalent :: Heptavalent (a.) Having seven units of attractive force or affinity; -- said of heptad elements or radicals.

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

Dicyanide :: Dicyanide (n.) A compound of a binary type containing two cyanogen groups or radicals; -- called also bicyanide.

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

Phosphinic :: Phosphinic (a.) Pertaining to, or designating, certain acids analogous to the phosphonic acids, but containing two hydrocarbon radicals, and derived from the secondary phosphines by oxidation..

Benzyl :: Benzyl (n.) A compound radical, C6H5.CH2, related to toluene and benzoic acid; -- commonly used adjectively..

Pyridyl :: Pyridyl (n.) A hypothetical radical, C5H4N, regarded as the essential residue of pyridine, and analogous to phenyl..

Aniline :: Aniline (n.) An organic base belonging to the phenylamines. It may be regarded as ammonia in which one hydrogen atom has been replaced by the radical phenyl. It is a colorless, oily liquid, originally obtained from indigo by distillation, but now largely manufactured from coal tar or nitrobenzene as a base from which many brilliant dyes are made..

Hemimellitic :: Hemimellitic (a.) Having half as many (three) carboxyl radicals as mellitic acid; -- said of an organic acid.

Dinaphthyl :: Dinaphthyl (n.) A colorless, crystalline hydrocarbon, C20H14, obtained from naphthylene, and consisting of a doubled naphthylene radical..

Diallyl :: Diallyl (n.) A volatile, pungent, liquid hydrocarbon, C6H10, consisting of two allyl radicals, and belonging to the acetylene series..

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

Polyacid :: Polyacid (a.) Capable of neutralizing, or of combining with, several molecules of a monobasic acid; having more than one hydrogen atom capable of being replaced by acid radicals; -- said of certain bases; as, calcium hydrate and glycerin are polyacid bases..

Methenyl :: Methenyl (n.) The hypothetical hydrocarbon radical CH, regarded as an essential residue of certain organic compounds..

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

Triglyceride :: Triglyceride (n.) A glyceride formed by the replacement of three hydrogen atoms in glycerin by acid radicals.

Biacid :: Biacid (a.) Having two hydrogen atoms which can be replaced by negative atoms or radicals to form salts; -- said of bases. See Diacid.

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