/ Dictionary / Index Y yearling: Meaning and Definition of Find definitions for: year•ling Pronunciation: (yēr'ling), [key] — n. an animal in its second year. a horse one year old, dating from January 1 of the year after the year of foaling. —adj. being a year old. of a year's duration or standing: a yearling bride. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: yearling (Thesaurus) year-end yearlong 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