Assertion: nitrous oxide's use | /r/HasProperty | as anesthetic
Facets:
value: to be used under controlled circumstances
type: PURPOSE
value: in 1844
type: TEMPORAL
value: in surgical operations of short duration
type: TEMPORAL
Source sentences:
text: A principal use of nitrous oxide is as an anesthetic in surgical operations of short duration; prolonged inhalation causes death.
text: The first reported medical use of N 2 O was as an anesthetic administered by dentist Horace Wells during a tooth extraction in 1844.
text: The legal use of nitrous oxide is as an anesthetic – to be used under controlled circumstances in medical and dental procedures.