noun In both senses also called marron.The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- A deciduous Mediterranean tree (Castanea sativa) bearing edible nuts enclosed in a spiny bur.
- The nut of this tree.