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plural noun

in some classifications : a group of lungfishes including the genera Protopterus and Lepidosiren in which the lung is double and the lateral rays of the archipterygium are vestigial or absent
in some classifications : a division of holothurians having two branching respiratory organs


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taxonomic synonym of dipneumones

Word History


Plural noun

New Latin, from neuter plural of dipneumonus dipneumonous

New Latin, from neuter plural of dipneumonus

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Dictionary Entries Near Dipneumona

Cite this Entry

“Dipneumona.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Dipneumona. Accessed 29 Sep. 2023.

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