Hypertext Webster Gateway: "polybasic"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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 polybasic.
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