Magistral :: Magistral (a.) Pertaining to a master; magisterial; authoritative; dogmatic.
Magistral :: Magistral (a.) Commanded or prescribed by a magister, esp. by a doctor; hence, effectual; sovereign; as, a magistral sirup..
Magistral :: Magistral (a.) Formulated extemporaneously, or for a special case; -- opposed to officinal, and said of prescriptions and medicines..
Magistral :: Magistral (n.) Powdered copper pyrites used in the amalgamation of ores of silver, as at the Spanish mines of Mexico and South America..