diacidic
(ˌdaɪəˈsɪdɪk) adj (Chemistry) (of a base, such as calcium hydroxide Ca(OH)2) capable of neutralizing two protons with one of its molecules. Also:
diacid Compare
dibasic Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014