单词	oligotrophic
释义	oligotrophic adjective ol·​i·​go·​tro·​phic ˈä-li-gō-ˈtrō-fik  ˈō-; ə-ˈli-gə- : having a deficiency of plant nutrients that is usually accompanied by an abundance of dissolved oxygen clear oligotrophic lakes Example Sentences Recent Examples on the Web Luisa Falcón, a microbial ecologist at the National Autonomous University of Mexico, has studied oligotrophic microbes all over the world. Allison Keeley, The New Yorker, 12 July 2021 Mashapaug Lake is oligotrophic — largely free of nutrients — so the water is very clear and paddlers can see down about 20 feet. Frank Cohen, courant.com, 18 May 2017 Word History Etymology International Scientific Vocabulary First Known Use 1911, in the meaning defined above
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