a. [ Pref. bi- + carinate. ] (Biol.) Having two keel-like projections, as the upper palea of grasses. [ 1913 Webster ]
n. [ Pref. bi- + carbonate. ] (Chem.) A carbonate in which but half the hydrogen of the acid is replaced by a positive element or radical, thus making the proportion of the acid to the positive or basic portion twice what it is in the normal carbonates; an acid carbonate; -- sometimes called
n. [ Pref. bi- + carbonate. ] (Chem.) A carbonate in which but half the hydrogen of the acid is replaced by a positive element or radical, thus making the proportion of the acid to the positive or basic portion twice what it is in the normal carbonates; an acid carbonate; -- sometimes called