bibasic, a. Chem.
(baɪˈbeɪsɪk)
[f. bi- prefix2 1 + base n.1 + -ic.]
Having two bases. bibasic acid: one which contains two atoms of displaceable hydrogen (e.g. H2SO4), and can therefore form two series of salts, normal (e.g. K2SO4) and acid (e.g. KHSO4). Now more commonly di-basic.
| 1847–9 Todd Cycl. Anat. & Phys. IV. 80/2 The bibasic phosphate of ammonia and magnesia. 1876 Harley Mat. Med. 314 Oxalic acid is bibasic. |