Also chlorimeter. [f. CHLORO- combining form of CHLORINE + -METER; cf. F. chloromètre.] An instrument for measuring the amount of chlorine in chlorinated lime, soda, or potash, with a view to estimating their bleaching power, etc.
1826. Henry, Elem. Chem., I. 585. Gay Lussac has contributed to render the assay of chloride of lime by indigo more certain … by the invention of an apparatus for the purpose, which he calls a chlorometer.
Hence Chlorometric a.; Chlorometry (also chlorimetry) [cf. F. chlorométrie], ‘the name given to the process or processes by which the amount of available chlorine is estimated in substances containing it, which are employed in bleaching, or as disinfectants’ (Ure, Dict. Arts, I. 792).
