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Related to cryptosporidium: Cryptosporidium parvum
A protozoan of the genus Cryptosporidium that is an intestinal parasite in humans and other vertebrates and sometimes causes diarrhea that is especially severe in immunocompromised people.
[New Latin Cryptosporidium, genus name : crypt(o)- + spor(o)- + Latin -idium, diminutive suff. (from Greek -idion).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Microbiology) any parasitic sporozoan protozoan of the genus Cryptosporidium, species of which are parasites of birds and animals and can be transmitted to humans, causing severe abdominal pain and diarrhoea (cryptosporidiosis)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014