sweet clover definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
any of a genus (Melilotus) of annual or biennial plants of the pea family, with small, white or yellow flowers, leaflets in groups of three, and single-seeded pods: grown for hay, forage, or green manure
sweet clover definition by American Heritage Dictionary