Coccidial

Part of speech: adjective, noun

Definitions

1. Relating to or caused by a group of microscopic parasitic protozoa that infect the intestinal tracts of animals and birds, often responsible for the disease coccidiosis; pertaining to organisms that reproduce by forming oocysts within the host's cells; associated with parasitic protozoans in the subclass Coccidia
2. Connected with protozoan parasites that invade the digestive system of various animals, leading to coccidiosis; describing pathogens that multiply inside host cells by producing environmentally resistant oocysts; concerned with a subclass of apicomplexan parasites known for their complex life cycles
3. Involving microscopic parasitic protozoa that cause intestinal illness in hosts like livestock and poultry, characterized by the formation of resistant oocysts; referring to protozoans from the subclass Coccidia which undergo intracellular reproduction; related to infections caused by coccidian parasites affecting animals' digestive tracts

Etymology: "Coccidial" is a straightforward scientific coinage built from the name of a group of parasites and the common English adjective-forming suffix. The group is "Coccidia", a translingual name in zoology and parasitology, and the suffix "-al" (from Latin "-alis") turns it into a descriptive adjective meaning "relating to" or "concerned with" that group. The word therefore literally means "of the coccidia." The parasites it describes are protozoans in the subclass Coccidia, a part of the larger apicomplexan group. Coccidians invade the digestive tract and other tissues of many animals, and infections they cause are known as coccidiosis. Their life cycles are notably complicated: the organisms multiply inside host cells and release environmentally resistant oocysts that pass out in feces, which is how infection spreads to new hosts.

Synonyms: coccidian, parasitic protozoan