/ Dictionary / Index M magistery: Meaning and Definition of Find definitions for: mag•is•ter•y Pronunciation: (maj'u-ster"ē, -stu-rē), [key] — pl. -ter•ies. an agency or substance, as in alchemy, to which faculties of healing, transformation, etc., are ascribed. mastership. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. magisterium magistracy Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language