polybasen.

Brit.

/ˈpɒlɪbeɪs/, U.S.

/ˈpɑliˌbeɪs/

Origin: Formed within English, by compounding. Etymons: poly- comb. form, base n.¹

Etymology: < poly- comb. form + base n.¹, after Italian polibase (1918 in the passage translated in quot. 1920). Compare earlier polybasic adj.

Chemistry.

A compound which contains more than one basic group per molecule.

ΘΚΠ

the world > matter > chemistry > chemical substances > bases > [noun] > polybase

polybase1920

1920 T. H. Pope tr. E. Molinari Treat. Inorg. Chem. (ed. 2) 274 Several molecules of a polybasic acid are able to condense and form polyacids..and in the same way it is known that the polyacid bases, also called polyhydric bases, condense to form polybases or polyhydroxides.

1966 G. M. Fleck Equilibria in Solution v. 83 Ion-exchange resins are familiar examples of polyacids and polybases.

2001 Chem. & Industry (Nexis) 2 Jan. A polyacid (or polybase) is applied to the substrate from solution, then on top of this is a poly-base (poly-acid) and so forth, sequentially.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polybase
释义	polybasen. Brit. /ˈpɒlɪbeɪs/, U.S. /ˈpɑliˌbeɪs/ Origin: Formed within English, by compounding. Etymons: poly- comb. form, base n.¹ Etymology: < poly- comb. form + base n.¹, after Italian polibase (1918 in the passage translated in quot. 1920). Compare earlier polybasic adj. Chemistry. A compound which contains more than one basic group per molecule. ΘΚΠ the world > matter > chemistry > chemical substances > bases > [noun] > polybase polybase1920 1920 T. H. Pope tr. E. Molinari Treat. Inorg. Chem. (ed. 2) 274 Several molecules of a polybasic acid are able to condense and form polyacids..and in the same way it is known that the polyacid bases, also called polyhydric bases, condense to form polybases or polyhydroxides. 1966 G. M. Fleck Equilibria in Solution v. 83 Ion-exchange resins are familiar examples of polyacids and polybases. 2001 Chem. & Industry (Nexis) 2 Jan. A polyacid (or polybase) is applied to the substrate from solution, then on top of this is a poly-base (poly-acid) and so forth, sequentially. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1920
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