pneu·​mat·​o·​phore nu̇-ˈma-tə-ˌfȯr How to pronounce pneumatophore (audio)
: a muscular gas-containing sac that serves as a float on a siphonophore colony
: a usually partially exposed root of a wetland plant (such as a mangrove) that functions especially in the intake of oxygen from the atmosphere

Examples of pneumatophore in a Sentence

Recent Examples on the Web The arrangement of these pneumatophores can help scientists tell pterosaur species apart. Michael Greshko, National Geographic, 10 Sep. 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'pneumatophore.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


International Scientific Vocabulary

First Known Use

1859, in the meaning defined at sense 1

Time Traveler
The first known use of pneumatophore was in 1859

Dictionary Entries Near pneumatophore

Cite this Entry

“Pneumatophore.” Dictionary, Merriam-Webster, Accessed 25 Feb. 2024.

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