| blue devil n. 1. Slang A blue capsule or tablet containing barbiturate amobarbital or its sodium derivative. 2. blue devils Informal A feeling of depression; despondency. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  blue devil - a coarse prickly European weed with spikes of blue flowers; naturalized in United Statesherb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests Echium, 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 hypnotic amobarbital - a barbiturate with sedative and hypnotic effects; used to relieve insomnia and as an anticonvulsant |
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