Pronunciation: (yēr'ling), [key]
1. an animal in its second year.
2. a horse one year old, dating from January 1 of the year after the year of foaling.
1. being a year old.
2. of a year's duration or standing: a yearling bride.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.