Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun blue_devil

2 senses of blue devil

Sense 1
blueweed, blue devil, blue thistle, viper's bugloss, Echium vulgare -- (a coarse prickly European weed with spikes of blue flowers; naturalized in United States)
       => herb, herbaceous plant -- (a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests)

Sense 2
amobarbital sodium, blue, blue angel, blue devil, Amytal -- (the sodium salt of amobarbital that is used as a barbiturate; used as a sedative and a hypnotic)
       => amobarbital -- (a barbiturate with sedative and hypnotic effects; used to relieve insomnia and as an anticonvulsant)