Japanese walnut

noun

Definition of Japanese walnut

: a valuable Japanese nut tree (Juglans cordiformis ailanthifolia) that bears a heart-shaped nut and is used as a walnut stock because of its hardiness

called also heartnut, Japan walnut

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“Japanese walnut.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/Japanese%20walnut. Accessed 29 January 2020.

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