1. A coarse prickly European weed with spikes of blue flowers; naturalized in United States
   - blueweed, blue thistle, viper's bugloss, Echium vulgare 
2. 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

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