/ Dictionary / Index Y Yampa: Meaning and Definition of Find definitions for: Yam•pa Pronunciation: (yam'pu), [key] a river in NW Colorado, flowing W into the Green River in Dinosaur National Monument. 250 mi. (402 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Yamoussoukro yampee Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language