Hypertext Webster Gateway: "Macrocystis"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Macrocystis \Mac`ro*cys"tis\, n. [NL. See {Macro-}, and {Cyst}.]
(Bot.)
An immensely long blackish seaweed of the Pacific
({Macrocystis pyrifera}), having numerous almond-shaped air
vessels.
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