blue devil

Thesaurus

Noun	1.	blue devil - a coarse prickly European weed with spikes of blue flowers; naturalized in United Statesblue thistle, blueweed, Echium vulgare, viper's buglossherb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pestsEchium, genus Echium - a genus of bristly herbs and shrubs of the family Boraginaceae
	2.	blue devil - the sodium salt of amobarbital that is used as a barbiturate; used as a sedative and a hypnoticamobarbital sodium, Amytal, blue angel, blueamobarbital - a barbiturate with sedative and hypnotic effects; used to relieve insomnia and as an anticonvulsant