The Collaborative International Dictionary
Nitrometer
Nitrometer \Ni*trom"e*ter\, n. [Nitro- + -meter: cf. F. nitrom[`e]tre.] (Chem.) An apparatus for determining the amount of nitrogen or some of its compounds in any substance subjected to analysis; an azotometer.
Wiktionary
nitrometer
n. (context chemistry English) An apparatus for determining the amount of nitrogen or some of its compounds in a substance.