Pentabasic
Pronunciation : Pen`ta*ba"sic
Part of Speech : a.
Etymology : [Penta- + basic.] (Chem.)
Definition : Defn: Capable of uniting with five molecules of a monacid base; having five acid hydrogen atoms capable of substitution by a basic radical; -- said of certain acids.
Source : Webster's Unabridged Dictionary, 1913