pulmonary sac

noun
variants: or less commonly pulmonary cavity

Definition of pulmonary sac

: a hollow organ having a contractile exterior opening and lined with a network of blood vessels that functions as a lung in most land mollusks

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Cite this Entry

“Pulmonary sac.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pulmonary%20sac. Accessed 30 Nov. 2020.

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