Breadcrumb Home > Dictionary > Index R river basin: Meaning and Definition of Find definitions for: riv'er ba"sin Pronunciation: [key] — Physical Geog. Physical Geog. the area of land drained by a river and its branches. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. riverbank grape riverbed 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: pernicious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language