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...

Radicalism :: Radicalism (n.) The quality or state of being radical; specifically, the doctrines or principles of radicals in politics or social reform..

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..

Sticcado :: Stibonium (n.) The hypothetical radical SbH4, analogous to ammonium; -- called also antimonium..

Phthalyl :: Phthalyl (n.) The hypothetical radical of phthalic acid.

Methylene :: Methylene (n.) A hydrocarbon radical, CH2, not known in the free state, but regarded as an essential residue and component of certain derivatives of methane; as, methylene bromide, CH2Br2; -- formerly called also methene..

Carbonyl :: Carbonyl (n.) The radical (CO)'', occuring, always combined, in many compounds, as the aldehydes, the ketones, urea, carbonyl chloride, etc..

Radically :: Radically (adv.) Without derivation; primitively; essentially.

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

Myricyl :: Myricyl (n.) A hypothetical radical regarded as the essential residue of myricin; -- called also melissyl.

Octyl :: Octyl (n.) A hypothetical hydrocarbon radical regarded as an essential residue of octane, and as entering into its derivatives; as, octyl alcohol..

Lipyl :: Lipyl (n.) A hypothetical radical of glycerin.

Diatomic :: Diatomic (a.) Having two replaceable atoms or radicals.

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

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

Ditolyl :: Ditolyl (n.) A white, crystalline, aromatic hydrocarbon, C14H14, consisting of two radicals or residues of toluene..

Dimethyl :: Dimethyl (n.) Ethane; -- sometimes so called because regarded as consisting of two methyl radicals. See Ethane.

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

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..

Sycock :: Sycoceryl (n.) A radical, of the aromatic series, regarded as an essential ingredient of certain compounds found in the waxy resin of an Australian species of fig..

Azo- :: Azo- () Now especially applied to compounds containing a two atom nitrogen group uniting two hydrocarbon radicals, as in azobenzene, azobenzoic, etc. These compounds furnish many artificial dyes. See Diazo-..

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