/ Dictionary / Index D desert locust: Meaning and Definition of Find definitions for: des'ert lo"cust Pronunciation: [key] a migratory locust, Schistocerca gregaria, of North Africa and Asia, associated with the plagues described in the Old Testament. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. desertion desert rat 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