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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Certain sea turtles, for example, independently evolved seagrass-munching adaptations multiple times across different epochs. Big Think, 29 Oct. 2025 Officials described the sighting as rare and an encouraging sign for local marine conservation efforts, including the projects promoting seagrass growth, a key food source for dugongs. Aspen Pflughoeft, Miami Herald, 23 Oct. 2025 The report noted that the bay’s famous seagrass beds were undergoing a massive die-off, accompanied by algal blooms that depleted oxygen levels, thereby killing fish in large numbers. Jerome Lorenz, The Conversation, 14 Oct. 2025 This bird carried not only the usual seagrass but also a strand of red grape algae, which glowed like translucent jewels. Cecilia Rodriguez, Forbes.com, 18 Sep. 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 8 Nov. 2025.

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