/ Dictionary / Index M McAllen: Meaning and Definition of Find definitions for: Mc•Al•len Pronunciation: (mu-kal'un), [key] — n. a city in S Texas, on the Rio Grande. 67,042. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mcallen (Thesaurus) McAlester MCAT Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language