Having more than one replaceable hydrogen atom, denoting an acid with a basicity greater than 1.

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poly·ba·sic -'bā-sik, -zik adj having more than one hydrogen atom replaceable by basic atoms or radicals used of acids
poly·ba·sic·i·ty -bā-'sis-ət-ē n, pl -ties

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poly·ba·sic (pol″e-baґsik) [poly- + basic] 1. denoting any acid which has several hydrogen atoms replaceable by a base. 2. denoting any salt of a polybasic acid formed by replacing some or all of its hydrogen atoms by a base.

Medical dictionary. 2011.

Look at other dictionaries:

  • Polybasic — Pol y*ba sic, a. [Poly + basic.] (Chem.) Capable of neutralizing, or of combining with, several molecules of a monacid base; having several hydrogen atoms capable of being replaced by basic radicals; said of certain acids; as, sulphuric acid is… …   The Collaborative International Dictionary of English

  • polybasic — [päl΄i bās′ik] adj. [ POLY + BASIC] 1. designating an acid having more than one hydrogen atom (per molecule) replaceable by basic atoms or radicals 2. designating a salt having more than one atom (per molecule) of a monovalent metal …   English World dictionary

  • polybasic — adj. [Gr. polys, many; basis, base] 1. Having more than one base. 2. Genera originated on a number of species …   Dictionary of invertebrate zoology

  • polybasic — polybasicity /pol ee bay sis i tee/, n. /pol ee bay sik/, adj. Chem. (of an acid) having two or more atoms of replaceable hydrogen. [1835 45; POLY + BASIC] * * * …   Universalium

  • polybasic — adjective a) containing two or more replaceable hydrogen atoms b) having two or more atoms of a univalent metal …   Wiktionary

  • polybasic — pÉ‘lɪ beɪsɪk / pÉ’l adj. containing two or more hydrogen atoms that can be replaced (Chemistry) …   English contemporary dictionary

  • polybasic — poly·basic …   English syllables

  • polybasic — /pɒliˈbeɪsɪk/ (say polee baysik) adjective (of an acid) having two or more atoms of replaceable hydrogen …   Australian English dictionary

  • polybasic — …   Useful english dictionary

  • polybasic acid — daugiaprotonė rūgštis statusas T sritis chemija apibrėžtis Rūgštis, kurios molekulė tirpale gali disocijuoti atskeldama daugiau negu vieną protoną. atitikmenys: angl. polybasic acid; polyprotonic acid rus. многоосновная кислота; многопротонная… …   Chemijos terminų aiškinamasis žodynas

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