Breadcrumb Home > Dictionary > Index R Rous sarcoma: Meaning and Definition of Find definitions for: Rous' sarco"ma Pronunciation: (rous), [key] — Vet. Pathol. Vet. Pathol. a malignant tumor occurring in the connective tissue of poultry, caused by a transmissible RNA-containing virus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rousing Rousseau TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: persiflage Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language