seagrass

noun

sea·​grass ˈsē-ˌgras How to pronounce seagrass (audio)
: any of various submerged monocotyledonous plants (such as eelgrass, tape grass, and turtle grass) of tropical to temperate usually shallow coastal waters that have narrow grasslike leaves and often form dense underwater meadows

Examples of seagrass in a Sentence

Recent Examples on the Web
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Its decades-long monitoring in the bay documented seagrass loss that helped restart flagging efforts to stop pollution flowing from stormwater and leaky septic tanks in 2019. Jenny Staletovich, Miami Herald, 10 Mar. 2026 And Texas islands, with their shallow bays and seagrass meadows, are home to extensive wildlife. Lydia Mansel, Travel + Leisure, 5 Mar. 2026 The Terra Ceia Aquatic Preserve is home to healthy and thriving seagrass, wetlands and a vital wildlife habitat. Justin Tramble, The Orlando Sentinel, 21 Feb. 2026 When summer water temperatures soared, the hot salty water was unable to hold enough oxygen, and seagrass beds were unable to produce enough oxygen to survive. Bill Kearney, Sun Sentinel, 19 Feb. 2026 See All Example Sentences for seagrass

Word History

First Known Use

1578, in the meaning defined above

Time Traveler
The first known use of seagrass was in 1578

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Cite this Entry

“Seagrass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seagrass. Accessed 13 Mar. 2026.

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