seconal secohmmeter • second · · · Info · Definitions · Synonyms · Characters · · seconal · · Text Latin · · Script 7 · · Length 3 · · Syllables Definitions · · · (noun) barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions. Synonyms: secobarbital sodium, secobarbital, Seconal, red devil. · · Noun Definition 1 Synonyms · · · secobarbital sodium · · Synonym 1 secobarbital · · Synonym 2 red devil · · Synonym 3 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073