Definition of Pentobarbitone

Noun: pentobarbitone ,pen-tu'baa(r)-bi,town
Usage: Brit (N. Amer: pentobarbital)

A barbiturate (trade name Nembutal) used as a sedative and hypnotic and antispasmodic
- pentobarbital sodium, pentobarbital [N. Amer], Nembutal, yellow jacket [N. Amer]