Meaning of dibasic

di•ba•sic

Pronunciation: (dī-bā'sik), [key]
— adj. Chem.
  1. containing two replaceable or ionizable hydrogen atoms: dibasic acid.
  2. having two univalent, basic atoms, as dibasic sodium phosphate, NaHPO.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.