yellow jacket Meaning, Definition & Usage
- 
       noun a barbiturate (trade name Nembutal) used as a sedative and hypnotic and antispasmodic
       
       
pentobarbital; pentobarbital sodium; Nembutal.
 - 
       noun small yellow-marked social wasp commonly nesting in the ground
       
       
yellow hornet; Vespula maculifrons.