The Collaborative International Dictionary
Pyrroline
Pyrroline \Pyr"ro*line\, n. (Chem.) A nitrogenous base, C4H7N, obtained as a colorless liquid by the reduction of pyrrole.
Wiktionary
pyrroline
n. (context organic compound English) Any of three isomeric monounsaturated heterocycles having a five-membered ring and one nitrogen atom C4H7N; any derivative of these compounds