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Flustra

noun
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Flus·​tra | \ ˈfləstrə, ˈflüs- \

Definition of Flustra

: a genus (the type of a widely distributed family Flustridae) of marine bryozoans (class Gymnolaemata) that form broad flattened branching colonies — see sea mat

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“Flustra.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Flustra. Accessed 24 May. 2020.

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