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pneumatophore

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noun pneu·mat·o·phore \nu̇-ˈma-tə-ˌfȯr, nyu̇-\

Definition of pneumatophore

  1. 1 :  a muscular gas-containing sac that serves as a float on a siphonophore colony

  2. 2 :  a usually partially exposed root of a wetland plant (such as a mangrove) that functions especially in the intake of oxygen from the atmosphere

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Origin and Etymology of pneumatophore

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