| polybasic | <chemistry> Capable of neutralising, 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 polybasic. Origin: Poly- + basic. Source: Websters Dictionary (01 Mar 1998) |
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| polybasic acid | An acid containing more than three ionizable atoms of hydrogen in the molecule. (05 Mar 2000) |
| polybasic |
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.
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| polybasic a. |
an acid which contains two or more hydrogen atoms which may be neutralized by alkalies and replaced by organic radicals.
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