cryp·​to·​spo·​rid·​i·​um | \ ˌkrip-tō-spȯr-ˈi-dē-əm How to pronounce cryptosporidium (audio) \
plural cryptosporidia\ ˌkrip-​tō-​spȯr-​ˈi-​dē-​ə How to pronounce cryptosporidia (audio) \

Definition of cryptosporidium

: any of a genus (Cryptosporidium of the order Coccidia) of protozoans parasitic in the gut of vertebrates including humans and sometimes causing diarrhea

Examples of cryptosporidium in a Sentence

Recent Examples on the Web

And though pool water is usually treated with chemicals and chlorine, The New York Times explained that there's a bacteria called cryptosporidium that can outlast all of that and hide in the water for nearly a week. Lauren Rearick, Teen Vogue, "The CDC Warns of Possible Dangerous Bacteria in Pool Water," 18 May 2018 In the past two years, outbreaks of cryptosporidiosis, a parasitic disease caused by the bacteria cryptosporidium, have affected hundreds of people. Agnel Philip, azcentral, "Pool season is crypto season: How to lower the odds of getting infected," 26 May 2018 Hard to kill Standard chlorine takes a long time to kill the cryptosporidium bacteria. Agnel Philip, azcentral, "Pool season is crypto season: How to lower the odds of getting infected," 26 May 2018 One of the top causes of post-swim illness is a parasite called cryptosporidium (crypto for short), which leads to diarrhea, stomach pain and nausea. Dr. Roshini Raj,, "3 Things You Can Catch from a Pool," 23 May 2018 Pool or hot tub water that contains cryptosporidium can often cause gastrointestinal illness — and in rare cases, even death, the CDC noted. Lauren Rearick, Teen Vogue, "The CDC Warns of Possible Dangerous Bacteria in Pool Water," 18 May 2018 One gram of dog poop can contain up to 23 million fecal coliform bacteria, and dog poop is also a common carrier of whipworms, hookworms, roundworms, parvo, coronavirus, giardia, salmonella, cryptosporidium, and campylobacter. Wes Siler, Outside Online, "It’s Time to Talk About Dog Poop," 27 Mar. 2018 Later, the battleground moved to microbes, viruses and parasites such as giardia and cryptosporidium. Andrew Maykuth,, "'Dr. Water' is hanging up his lab coat after three decades," 18 Aug. 2017 The Portland Water Bureau will have to spend upward of $90 million to construct a water treatment plant the state previously excused the city from building after finding excessive levels of the cryptosporidium parasite between January and March. Jessica Floum,, "Parasite levels in Portland's drinking water surpass state limits, will cost city at least $90M," 23 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cryptosporidium.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cryptosporidium

1910, in the meaning defined above

History and Etymology for cryptosporidium

borrowed from New Latin, genus name, from crypto- crypto- + sporidium "small spore," from spora spore entry 1 + -idium -idium

Note: Taxon introduced by the American physician and parasitologist Ernest E. Tyzzer (1875-1965) in "A sporozoan found in the peptic glands of the common mouse," Proceedings of the Society for Experimental Biology and Medicine, vol. 5 (1907-08), pp. 12-13.

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The first known use of cryptosporidium was in 1910

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More Definitions for cryptosporidium


cryp·​to·​spo·​rid·​i·​um | \ ˌkrip-tō-spȯr-ˈid-ē-əm How to pronounce cryptosporidium (audio) \

Medical Definition of cryptosporidium

1 capitalized : a genus of protozoans of the order Coccidia that are parasitic in the gut of many vertebrates including humans and that sometimes cause diarrhea especially in individuals who are immunocompromised (as in AIDS)
2 plural cryptosporidia\ -​ē-​ə How to pronounce cryptosporidia (audio)\ : any protozoan of the genus Cryptosporidium

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