arborescent appendage
noun
: any branched accessory vascular structure in the gill chamber of certain fishes that leave the water (as the climbing perch) by which they are enabled to breathe air
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“Arborescent appendage.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arborescent%20appendage. Accessed 1 Dec. 2024.
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