Medical Dictionary

phenobarbital

noun phe·no·bar·bi·tal \ˌfē-nō-ˈbär-bə-ˌtl, -tȧl\

Medical Definition of PHENOBARBITAL

:  a crystalline barbiturate C12H12N2O3 that is used orally or is administered by injection in the form of its sodium salt C12H11N2NaO3 as a hypnotic and sedative—see luminal
May 05, 2015
epigram Hear it
a short and clever poem or saying
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears