1. [ noun ] (medicine,pharmacology) the sodium salt of amobarbital that is used as a barbiturate; used as a sedative and a hypnotic
Synonyms: blue blue_angel Amytal amobarbital_sodium
Related terms: amobarbital
2. [ noun ] (botany) a coarse prickly European weed with spikes of blue flowers; naturalized in United States
Synonyms: blue_thistle viper's_bugloss Echium_vulgare blueweed
Related terms: herb Echium
Similar spelling:   blue_devils