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meth·o·hex·i·tal | \ ˌmeth-ə-ˈhek-sə-ˌtȯl 
, -ˌtal \
, -ˌtal \Medical Definition of methohexital
: a barbiturate with a short period of action usually used in the form of its sodium salt C14H17N2NaO3 as an intravenous general anesthetic
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