blue devil

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. a coarse prickly European weed with spikes of blue flowers;
naturalized in United States
• Syn:
blueweed, blue thistle, viper's bugloss, Echium vulgare
• Hypernyms:
herb, herbaceous plant
• Member Holonyms:
Echium, genus Echium
2. the sodium salt of amobarbital that is used as a barbiturate;
used as a sedative and a hypnotic
• Syn:
amobarbital sodium, blue, blue angel, Amytal
• Hypernyms:
amobarbital