1. Pertaining to a master; magisterial; authoritative; dogmatic 
2. Formulated extemporaneously, or for a special case; - opposed to officinal, and said of prescriptions and medicines

Encyclopedia: Magistral

• acardia
• acariasis
• acaricide
• acarid
• Acaridae
• acaridiasis
• Acarina
• acarine
• acariosis
• acaroid resin
• acarophobia
• acarpellous
• acarpelous
• acarpous
• acarus
• acaryote
• ACAS
• acatalectic
• acataphasia
• acathexia
• acathexis
• acaudal
• acaudate
• acaulescent
• ACC