/ Dictionary / Index I IJssel: Meaning and Definition of Find definitions for: IJs•sel Pronunciation: (ī'sul), [key] — n. a river in the central Netherlands, flowing N to the IJsselmeer: a branch of the Rhine River. 70 mi. (110 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ijssel (Thesaurus) Ijo IJsselmeer Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language