hydrilla

noun

hy·​dril·​la hī-ˈdri-lə How to pronounce hydrilla (audio)
: a freshwater aquatic Asian plant (Hydrilla verticillata of the Hydrocharitaceae family) that has small narrow leaves growing in whorls of three to eight around stems which become heavily branched near the water surface

Examples of hydrilla in a Sentence

Recent Examples on the Web
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The office was created in 2022 in response to alarms raised by scientists with the Agricultural Experiment Station who began surveying hydrilla in the river after it was detected in Glastonbury. Edmund H. Mahony, Hartford Courant, 12 May 2025 Keeney Cove is where the local hydrilla was first found in 2016 by a group of amateur scientists on a field trip. Edmund H. Mahony, Hartford Courant, 5 Aug. 2024 Aquatic vegetation like eelgrass, hydrilla and duckweed are crucial to the ecology of a spring. Kathryn Varn, Axios, 2 Aug. 2024 During the summer growing season, hydrilla produces oxygen, as do all plants do, and its stems and branches provide a refuge for fish. Edmund H. Mahony, Hartford Courant, 8 July 2024 See All Example Sentences for hydrilla

Word History

Etymology

New Latin, probably from Latin Hydra Hydra

First Known Use

1872, in the meaning defined above

Time Traveler
The first known use of hydrilla was in 1872

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Cite this Entry

“Hydrilla.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrilla. Accessed 29 May. 2025.

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