[mod. f. L. acid-um ACID + Gr. μετρία a measuring. The form of the word is due to the previous existence of alkalimetry.] The chemical process of measuring the strength of acids, ‘that is to say the quantity of pure free acid contained in a liquid.’ Ure.
1839. Reid, Elem. Chem. To ascertain the strength of any acid, an operation that is now termed Acidimetry.
1875. Ure, Dict. Arts, I. 18. Acidimetry is exactly the reverse of alkalimetry, since in principle it depends on the number of volumes of a solution of a base diluted with water to a definite strength, which are required to neutralize a known weight or measure of the different samples of acids.
