/ Dictionary / Index M medulla oblongata: Meaning and Definition of Find definitions for: medul'la oblonga'ta Pronunciation: [key] — pl. medulla oblongatas, medullae oblongatae. the lowest or hindmost part of the brain, continuous with the spinal cord. See diag. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. medulla medullary Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language