单词	duckweed
释义	duckweed noun duck·​weed ˈdək-ˌwēd  : a small floating aquatic monocotyledonous plant (family Lemnaceae, the duckweed family) Example Sentences Recent Examples on the Web Fish can’t survive there because duckweed depletes the oxygen that aquatic life needs to survive, Hulke said. Gloria Casas, chicagotribune.com, 26 Nov. 2021 The drama is heightened by the blanket of duckweed that has turned the placid, still water a surreal shade of green. Washington Post, 7 July 2021 To make up for any deficiency, dieters are asked to consume what's known as Wolffia globosa, or a byproduct of duckweed, an aquatic plant. Zee Krstic, Good Housekeeping, 7 Dec. 2020 Scientists have learned that duckweed can produce almost the same amount of protein as soybeans, soak up heavy metals and be revived after months or years in a freezer, Harkess said. Lee Roop | Lroop@al.com, al, 1 Sep. 2020 Demmig-Adams and her colleagues are exploring the best possible ways to grow duckweed. Jennifer Leman, Popular Mechanics, 16 July 2020 The tricky thing about growing duckweed (and all plants) in space is getting the conditions just right in order to maximize productivity and nutrient growth. Jennifer Leman, Popular Mechanics, 16 July 2020 And God was not waiting for artists among tupelo gum trees or brackish marsh or duckweed. Zachary Fine, The New York Review of Books, 8 Feb. 2020 Plants include bacopa, elodea, stream moss, duckweed, azolla and ludwigia. Janene Holzberg, baltimoresun.com, 3 Sep. 2019 See More Word History First Known Use 15th century, in the meaning defined above
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