单词	protozoan
释义	protozoan noun pro·​to·​zo·​an ˌprō-tə-ˈzō-ən  : any of a phylum or subkingdom (Protozoa) of chiefly motile and heterotrophic unicellular protists (such as amoebas, trypanosomes, sporozoans, and paramecia) that are represented in almost every kind of habitat and include some pathogenic parasites of humans and domestic animals protozoan adjective Example Sentences Recent Examples on the Web Karen Shapiro, an infectious disease expert at the University of California, Davis, showed that these protozoan parasites—specifically, Toxoplasma gondii, Cryptosporidium parvum, and Giardia enterica—can attach to microplastics in seawater. Michael Allen, Smithsonian Magazine, 1 Aug. 2022 This small but mighty tube makes just about any body of water drinkable thanks to its ability to remove over 99% of waterborne bacteria and protozoan parasites. Jaimie Potters, Harper's BAZAAR, 7 June 2022 Readers’ favorite item of the year was the ingenious LifeStraw portable water filter, which removes 99.9% of waterborne bacteria and protozoan parasites — sans iodine tablets or unwieldy purifiers. Julianne Ross, CNN Underscored, 28 Dec. 2020 The ultra-portable LifeStraw removes 99.9% of waterborne bacteria and protozoan parasites, no icky iodine taste or bulky contraptions required. Julianne Ross, CNN Underscored, 6 Nov. 2020 In vitro studies have shown that the drug—used primarily to treat helminth and protozoan infections—slows replication of SARS-CoV-2. Herton Escobar, Science | AAAS, 28 Oct. 2020 With claims to remove 99.9999% of waterborne bacteria and 99.9% of waterborne protozoan parasites and filter up to 0.2 microns, this little tool is super handy to have when on a hike, camping adventure or RV-trip. Nicole Briese, USA TODAY, 20 Oct. 2020 The portable filter removes 99.9% of waterborne bacteria and protozoan parasites — no bulky contraptions or icky iodine tablet taste required. Julianne Ross, CNN Underscored, 10 Sep. 2020 According to the company, this filter can decontaminate up to 1,000 gallons of water and remove up to 99.9999% of waterborne bacteria and 99.9% of waterborne protozoan parasites, plus nix up to .02 microns. Nicole Briese, USA TODAY, 3 Sep. 2020 See More Word History Etymology New Latin Protozoa, from prot- + -zoa First Known Use circa 1864, in the meaning defined above Kids Definition protozoan noun pro·​to·​zo·​an ˌprō-tə-ˈzō-ən  : a single-celled organism (as an amoeba or paramecium) that is a protist and is capable of movement Medical Definition protozoan 1 of 2 noun pro·​to·​zo·​an -ˈzō-ən  : any protist of the phylum or subkingdom Protozoa protozoan 2 of 2 adjective : of or relating to the phylum or subkingdom Protozoa
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