/ Dictionary / Index O Onkelos: Meaning and Definition of Find definitions for: On•ke•los Pronunciation: (ong'ku-los"), [key] — n. fl. 2nd centurya.d.,author of a Targum of the Pentateuch known as the Targum of Onkelos. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. -onium onkus Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language