Noun: blue devil bloo'de-vul
- A coarse prickly European weed with spikes of blue flowers; naturalized in United States
"blue devil had taken over the abandoned field";
- blueweed, blue thistle, viper's bugloss, Echium vulgare
- The sodium salt of amobarbital that is used as a barbiturate; used as a sedative and a hypnotic
- amobarbital sodium, blue, blue angel, Amytal
Derived forms: blue devils
Type of: amobarbital, herb, herbaceous plant
Part of: Echium, genus Echium
Encyclopedia: Blue devil