citrometer
(sɪˈtrɒmɪtə(r))
[f. citro- + -meter.]
An instrument used for determining the specific gravity of lemon juice in the preparation of citric acid.
| 1875 Jrnl. Chem. Soc. XXVIII. 930 Lemon-juice..is boiled down in copper vessels over an open fire till it is supposed to mark when cold 60° on the citrometer. 1879 Spon's Encycl. Industr. Arts 49 An instrument termed a citrometer is sometimes used to measure the amount of citric acid contained in the juice. |