walnut tree wal·nutt·ree uncommon noun 1. any of various trees of the genus Juglans Synonymswalnutwalnut tree Related words Broader terms nut tree Narrower terms California black walnutbutternutblack walnutEnglish walnut Parts Juglans Part of walnut WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
