/ Dictionary / Index M medullary: Meaning and Definition of Find definitions for: med•ul•lar•y Pronunciation: (med'l-er"ē, mej'u-ler"ē, mu-dul'u-rē), [key] — adj. pertaining to, consisting of, or resembling the medulla of an organ or the medulla oblongata. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: medullary (Thesaurus) medulla oblongata medullary ray Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language