seaweednoun [ U ]
uk/ˈsiː.wiːd/us/ˈsiː.wiːd/a green, brown, or dark red plant that grows in the sea or on land very close to the sea
Thesaurus: synonyms and related words
Water & marsh plants, bushes & trees
- algae
- blue-green algae
- bulrush
- duckweed
- kelp
- lotus
- mangrove
- papyrus
- phytoplankton
- plankton
- reed
- reedy
- rice
- rush
- samphire
- spirogyra
- water lily
Examples from literature
- The leafy seadragon looks like seaweed.
- This is good because its environment has a lot of seaweed!