swamp apple

noun

Definition of swamp apple

: a large white or pink slightly acid edible gall on the swamp azalea caused by a fungus (Exobasidium vaccinii)

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“Swamp apple.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/swamp%20apple. Accessed 24 Oct. 2020.

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