macrocystis
noun
mac·ro·cys·tis
\ˌmakrōˈsistə̇s\
Definition of macrocystis
1 capitalized : a genus of brown algae (family Laminariaceae) that are often very large and consist of a slender stipe with pinnate fronds and floats — see giant kelp
2 plural macrocystis : any plant of the genus Macrocystis
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Origin and Etymology of macrocystis
New Latin, from macr- + -cystis
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