
1) Azo
Found on
https://www.crosswordclues.com/clue/nitrogenous

1) Chemical element 2) Containing nitrogen 3) Element
Found on
https://www.crosswordclues.com/clue/nitrogenous

• (a.) Of, pertaining to, or resembling, nitrogen; as, a nitrogenous principle; nitrogenous compounds. • (a.) Of, pertaining to, or resembling, nitrogen; as, a nitrogenous principle; nitrogenous compounds.
Found on
http://thinkexist.com/dictionary/meaning/nitrogenous/

(ni-troj´ә-nәs) containing nitrogen.
Found on
http://www.encyclo.co.uk/local/21001
Ni·trog'e·nous adjective (Chemistry) Of, pertaining to, or resembling, nitrogen; as, a
nitrogenous principle;
nitrogenous compounds.
Nitrogenous foods .
See 2d Note under Food , noun , 1. Found on
http://www.encyclo.co.uk/webster/N/24

Type: Term Pronunciation: nī-troj′ĕ-nŭs Definitions: 1. Relating to or containing nitrogen.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=60543

A compound or molecule that contains nitrogen; in my context, a substance that is or was a part of protein metabolism.
Found on
http://www.swsbm.com/ManualsMM/MedHerbGloss2.txt

[
adj] - of or relating to or containing nitrogen
Found on
http://www.webdictionary.co.uk/definition.php?query=nitrogenous
nitrogen-bearing adjective of or relating to or containing nitrogen
Found on
https://www.encyclo.co.uk/local/20974

containing nitrogen.
Found on
https://www.infoplease.com/dictionary/nitrogenous
No exact match found.