Definition of radical

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Radical (n.) A primitive letter; a letter that belongs to the radix.

Lern More About Radical

Iconoclast :: Iconoclast (n.) One who exposes or destroys impositions or shams; one who attacks cherished beliefs; a radical.
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..
Nitryl :: Nitryl (n.) A name sometimes given to the nitro group or radical.
Diatomic :: Diatomic (a.) Having two replaceable atoms or radicals.
Xanthogen :: Xanthogen (n.) The hypothetical radical supposed to be characteristic of xanthic acid.
Ethyl :: Ethyl (n.) A monatomic, hydrocarbon radical, C2H5 of the paraffin series, forming the essential radical of ethane, and of common alcohol and ether..
Zircofluoride :: Zircofluoride (n.) A double fluoride of zirconium and hydrogen, or some other positive element or radical; as, zircofluoride of sodium..
Glycolyl :: Glycolyl (n.) A divalent, compound radical, CO.CH2, regarded as the essential radical of glycolic acid, and a large series of related compounds..
Carboxide :: Carboxide (n.) A compound of carbon and oxygen, as carbonyl, with some element or radical; as, potassium carboxide..
Chartism :: Chartism (n.) The principles of a political party in England (1838-48), which contended for universal suffrage, the vote by ballot, annual parliaments, equal electoral districts, and other radical reforms, as set forth in a document called the People's Charter..
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..
Tetramethylene :: Tetramethylene (n.) Sometimes, an isomeric radical used to designate certain compounds which are really related to butylene..
Fundamentally :: Fundamentally (adv.) Primarily; originally; essentially; radically; at the foundation; in origin or constituents.
Dicarbonic :: Dicarbonic (a.) Containing two carbon residues, or two carboxyl or radicals; as, oxalic acid is a dicarbonic acid..
Alloxanate :: Alloxanate (n.) A combination of alloxanic acid and a base or base or positive 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..
Diamine :: Diamine (n.) A compound containing two amido groups united with one or more basic or positive radicals, -- as contrasted with a diamide..
Plantain :: Plantain (n.) Any plant of the genus Plantago, but especially the P. major, a low herb with broad spreading radical leaves, and slender spikes of minute flowers. It is a native of Europe, but now found near the abode of civilized man in nearly all parts of the world..
Radical :: Radical (n.) A primitive word; a radix, root, or simple, underived, uncompounded word; an etymon..
Perissad :: Perissad (a.) Odd; not even; -- said of elementary substances and of radicals whose valence is not divisible by two without a remainder. Contrasted with artiad.
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