Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun phenobarbitone

1 sense of phenobarbitone

Sense 1
sodium thiopental, phenobarbital, phenobarbitone, Luminal, purple heart -- (a long-acting barbiturate used as a sedative)
       => barbiturate -- (organic compound having powerful soporific effect; overdose can be fatal)