instrument for measuring nitrogen and its compounds
• (n.) An apparatus for determining the amount of nitrogen or some of its compounds in any substance subjected to analysis; an azotometer. • (n.) An apparatus for determining the amount of nitrogen or some of its compounds in any substance subjected to analysis; an azotometer.
Ni·trom'e·ter noun [ Nitro- + -meter : confer French nitromètre .] (Chemistry) An apparatus for determining the amount of nitrogen or some of its compounds in any substance subjected to analysis; an azotometer. 
Type: Term Pronunciation: nī-trom′ĕ-tĕr Definitions: 1. A device for collecting and measuring the nitrogen set free in a chemical reaction.
an apparatus for determining the amount of nitrogen or nitrogen compounds in a substance or mixture.