1855 J. P. Norton 140 When these substances are subjected to chemical analysis, they are proved to belong to the same class, and to have a composition agreeing, with that of the nitrogenous or nitrogen-containing bodies of the plant.
1898 B. P. Colton vi. 161 Urea is the nitrogen-containing waste.
1994 Mar. 64/3 Protein and other nitrogen-containing compounds.