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cryptosporidium

cryp·to·spor·i·di·um [ krìptō spə ríddee əm ] (plural cryp·to·spor·i·di·a [ krìptō spə ríddee ə ])


noun 
Definition:
 
disease-spreading protozoan: a water-borne protozoan parasite that contaminates drinking water supplies, causing intestinal infections in human beings and domestic animals

[Late 20th century. < modern Latin< Greek kruptos "hidden" + sporidium "little spore" < spora "seed"]
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