seaweed

noun sea·weed \ ˈsē-ˌwēd \
Updated on: 18 May 2018

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)

Recent Examples of seaweed from the Web

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

in the meaning defined at sense 1

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SEAWEED Defined for English Language Learners

seaweed

Definition of seaweed for English Language Learners

  • : a type of plant that grows in the sea


SEAWEED Defined for Kids

seaweed

noun sea·weed \ ˈsē-ˌwēd \

Definition of seaweed for Students

: an alga (as a kelp) that grows in the sea


Seen and Heard

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