Emily Dickinson Lexicon

MAG-IS-TE'RI-AL, a. [See Magistrate.]

1. Pertaining to a master; such as suits a master; authoritative. Dryden.
2. Proud; lofty; arrogant; imperious; domineering. Pretenses go a great way with men that take fair words and magisterial looks for current payment. L'Estrange.
3. In chimistry, pertaining to magistery — which see.