·- A white, crystalline substance, CH2(CO·NH)2·CO, derived from alloxantin, also from malonic acid and urea, and regarded as a substituted urea.
·noun A sour substance. II. Acid ·adj Of or pertaining to an acid; as, acid reaction. III. Acid ·a...
Webster's Dictionary of the English Language
·add. ·- That variety of either the Bessemer or the open-hearth process in which the converter or he...
·- an organic acid, C3O3N3H3, first obtained by heating uric acid or urea, and called pyrouric acid;...
·noun An acid elevator, as a tube through which acid is forced to some height in a sulphuric acid ma...
·adj Having a taste compounded of saltness and acidity; both salt and acid. ...
·add. ·- Impure dark-colored sulphuric acid that has been used in the refining of petroleum. ...