Definition of radical

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Radical (a.) Of or pertaining to the root; proceeding directly from the root.

Lern More About Radical

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..
#NAME? :: -yl () A suffix used as a characteristic termination of chemical radicals; as in ethyl, carbonyl, hydroxyl, etc..
Substitute :: Substituent (n.) Any atom, group, or radical substituted for another, or entering a molecule in place of some other part which is removed..
Pentabasic :: Pentabasic (a.) Capable of uniting with five molecules of a monacid base; having five acid hydrogen atoms capable of substitution by a basic radical; -- said of certain acids.
Alcohol :: Alcohol (n.) A class of compounds analogous to vinic alcohol in constitution. Chemically speaking, they are hydroxides of certain organic radicals; as, the radical ethyl forms common or ethyl alcohol (C2H5.OH); methyl forms methyl alcohol (CH3.OH) or wood spirit; amyl forms amyl alcohol (C5H11.OH) or fusel oil, etc..
Radical :: Radical (n.) One who advocates radical changes in government or social institutions, especially such changes as are intended to level class inequalities; -- opposed to conservative..
Polytungstic :: Polytungstic (a.) Containing several tungsten atoms or radicals; as, polytungstic acid..
Trivalent :: Trivalent (a.) Having a valence of three; capable of being combined with, substituted for, or compared with, three atoms of hydrogen; -- said of triad atoms or radicals; thus, nitrogen is trivalent in ammonia..
Vinyl :: Vinyl (n.) The hypothetical radical C2H3, regarded as the characteristic residue of ethylene and that related series of unsaturated hydrocarbons with which the allyl compounds are homologous..
Cinnamyl :: Cinnamyl (n.) The hypothetical radical, (C6H5.C2H2)2C, of cinnamic compounds..
Conservative :: Conservative (n.) One who, or that which, preserves from ruin, injury, innovation, or radical change; a preserver; a conserver..
Nitroso- :: Nitroso- () (/ / /). (Chem.) A prefix (also used adjectively) designating the group or radical NO, called the nitroso group, or its compounds..
Heptad :: Heptad (n.) An atom which has a valence of seven, and which can be theoretically combined with, substituted for, or replaced by, seven monad atoms or radicals; as, iodine is a heptad in iodic acid. Also used as an adjective..
Sulphinic :: Sulphine (n.) Any one of a series of basic compounds which consist essentially of sulphur united with hydrocarbon radicals. In general they are oily or crystalline deliquescent substances having a peculiar odor; as, trimethyl sulphine, (CH3)3S.OH. Cf. Sulphonium..
Diallyl :: Diallyl (n.) A volatile, pungent, liquid hydrocarbon, C6H10, consisting of two allyl radicals, and belonging to the acetylene series..
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..
Sulphophosphate :: Sulphonium (n.) A hypothetical radical, SH3, regarded as the type and nucleus of the sulphines..
Quinoyl :: Quinoyl (n.) A radical of which quinone is the hydride, analogous to phenyl..
Isonitroso- :: Isonitroso- () A combining from (also used adjectively), signifying: Pertaining to, or designating, the characteristic, nitrogenous radical, NOH, called the isonitroso group..
Hexyl :: Hexyl (n.) A compound radical, C6H13, regarded as the essential residue of hexane, and a related series of compounds..
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