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rock·weed | \ ˈräk-ˌwēd 
\
\Definition of rockweed
: any of various coarse brown algae (order Fucales, especially genera Fucus, Ascophyllum, and Sargassum) growing in marine environments free-floating or attached to rocks
Examples of rockweed in a Sentence
Recent Examples on the Web Maine’s rockweed industry hinged on a similarly liberal interpretation of the ancient colonial rules.
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Ben Goldfarb, Smithsonian, "How Seaweed Connects Us All," 31 May 2018 This seaweed struggle, and the fate of A. nodosum itself, hinges on a single question, patently absurd yet bizarrely complex: is rockweed, in defiance of logic and biology, really a fish?
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Michelle Weber, Longreads, "What Is the Hot Commodity, Exactly?," 1 June 2018 But rockweed does not fit easily into existing categories.
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Ben Goldfarb, Smithsonian, "How Seaweed Connects Us All," 31 May 2018
See MoreThese example sentences are selected automatically from various online news sources to reflect current usage of the word 'rockweed.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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Time Traveler for rockweed
The first known use of rockweed was in 1583
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