/ Dictionary / Index Y Y.C.L.: Meaning and Definition of Find definitions for: Y.C.L. Pronunciation: [key] Young Communist League. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Y chromosome yclad Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language