Definitions
1.AdjectiveOf, relating to, or befitting a master; authoritative. .mw-parser-output .defdate{font-size:smaller}
2.AdjectiveSovereign (of a remedy); extremely effective.
3.AdjectiveFormulated extemporaneously, or for a special case; opposed to officinal, and said of prescriptions and medicines.
4.NounA sovereign medicine or remedy.
5.NounA magistral line.
6.NounPowdered copper pyrites used in the amalgamation of ores of silver, as at the Spanish mines of Mexico and South America.