oak apple

noun

Definition of oak apple

: a large round gall produced on oak leaves and twigs by a gall wasp (especially Amphibolips confluenta)

First Known Use of oak apple

15th century, in the meaning defined above

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The first known use of oak apple was in the 15th century

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Cite this Entry

“Oak apple.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/oak%20apple. Accessed 17 January 2020.

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