nitrous oxide

English Thesaurus

1. inhalation anesthetic used as an anesthetic in dentistry and surgery (noun.artifact)

hypernym	:	inhalation anaesthetic, inhalation anesthetic, inhalation general anaesthetic, inhalation general anesthetic,
definition	:	a gas that produces general anesthesia when inhaled (noun.artifact)

substance holonym	:	ammonium nitrate,
definition	:	used as an explosive and fertilizer and rocket propellant (noun.substance)