What is "aziridine"

n. 1 (context organic compound English) A three-membered heterocycle containing two methylene groups and an imine; the nitrogen equivalent of ethylene oxide. 2 (context by extension English) Any derivative of this basic structure.

Aziridines are organic compounds containing the aziridine functional group, a three-membered heterocycle with one amine group (-NH-) and two methylene bridges (--). The parent compound is aziridine (or ethylene imine), with molecular formula .