black walnut

black walnut (countable and uncountable, plural black walnuts)

1. Juglans nigra, a tree native to eastern North America.
2. The nuts of the aforementioned tree.
   • 1909, Eva Greene Fuller, The Up-To-Date Sandwich Book: 400 Ways to Make a Sandwich, page 130:

     BLACK WALNUT SANDWICH: Between thin slices of lightly buttered brown bread spread black walnut meats chopped rather fine. Nice to serve with hot chocolate.

3. The wood of the aforementioned species.
4. Synonym of Queensland walnut (“Endiandra palmerstonii”).

• (Juglans nigra): eastern black walnut

• black walnut on Wikipedia.Wikipedia
• Juglans nigra on Wikispecies.Wikispecies
• Juglans nigra on Wikimedia Commons.Wikimedia Commons
• black walnut at USDA Plants database