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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Their loss could lead to algae overgrowth and the collapse of seagrass habitats critical to juvenile fish. Sonia Osorio, Miami Herald, 30 June 2025 Here, genetic tests revealed that a 111-mile-wide meadow of shallow seagrass stemmed from a single hybrid plant that had initially been cloned some 4,500 years ago. Madison Dapcevich, Discover Magazine, 25 June 2025 The environmental group Bear Warriors United in 2022 filed the lawsuit against the department, arguing, in part, that wastewater discharges into the lagoon led to the demise of seagrass, a key food source for manatees, and resulted in deaths and other harm to the animals. Jim Saunders, Sun Sentinel, 18 June 2025 Restoration efforts are needed for our coastal ecosystems, such as mangroves, seagrass beds, coral reefs, and salt marshes, as natural hurricane defenses. Marc Benioff, Time, 24 June 2025 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 14 Jul. 2025.

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