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branchial heart

noun
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Definition of branchial heart

: a muscular enlargement of a vein of a cephalopod that contracts and drives the blood into the gills

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“Branchial heart.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/branchial%20heart. Accessed 1 Oct. 2020.

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