a colourless flammable gaseous hydrocarbon, used in medicine as an anaesthetic; trimethylene. It is a cycloalkane with molecules containing rings of three carbon atoms. Formula: C3H6; boiling pt: –34°C
cyclopropane in American English
(ˌsaɪkloʊˈproʊˌpeɪn)
noun
a colorless, flammable, gaseous cycloparaffin, C3H6, used as a general anesthetic