Definition of seaweed
1 : a mass or growth of marine plants
2 : a plant growing in the sea; especially : a marine alga (such as a kelp)
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Recent Examples of seaweed from the Web
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Toyota is looking to a greener future — literally — with dreams of an ultralight, superefficient plug-in hybrid with a bioplastic body made of seaweed that could be in showrooms within 15 years.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'seaweed'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of seaweed
1577
SEAWEED Defined for English Language Learners
seaweed
playDefinition of seaweed for English Language Learners
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: a type of plant that grows in the sea
SEAWEED Defined for Kids
seaweed
playDefinition of seaweed for Students
: an alga (as a kelp) that grows in the sea
Learn More about seaweed
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See words that rhyme with seaweed Spanish Central: Translation of seaweed Nglish: Translation of seaweed for Spanish speakers Britannica English: Translation of seaweed for Arabic speakers Britannica.com: Encyclopedia article about seaweed
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