What is "oxetane"

n. (context chemistry English) a class of heterocyclic compounds having a four-membered ring containing 3 carbon atoms and 1 oxygen atom; the parent compound C₃H₆O

Oxetane, or 1,3-propylene oxide, is an heterocyclic organic compound with the molecular formula CHO, having a four-membered ring with three carbon atoms and one oxygen atom.

The term oxetane may also refer more generally to any organic compound containing an oxetane ring.