1. A parasitic protozoan of the phylum Apicomplexa that infects the intestinal cells of vertebrates, especially birds and mammals.
Usage: biology; veterinary medicine

1. Relating to or caused by coccidians; of or pertaining to coccidiosis.
Usage: biology; veterinary medicine

Examples

• The veterinarian diagnosed the chick with a coccidian infection after observing blood in its droppings.
• Coccidian parasites are a common problem in poultry farming.
• The coccidian outbreak spread rapidly through the flock.
• Farmers use anticoccidial medications to prevent coccidian disease in young animals.
• Coccidian oocysts can survive in the environment for extended periods.
• The microscope revealed coccidian organisms in the intestinal tissue sample.