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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“Macrocystis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/macrocystis. Accessed 12 May. 2021.
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