sporozoa
Definition
- Noun:
- A taxonomic class or group of parasitic protozoans: Sporozoa refers to a large group of exclusively parasitic, spore-forming protozoans. They are typically non-motile in their adult forms and include many significant pathogens.
- Members of the class Sporozoea: In modern taxonomy, the term often relates to organisms within the class Sporozoea, characterized by a complex life cycle involving both sexual and asexual reproduction.
Usage Examples
- Noun:
- Malaria is caused by a sporozoa of the genus Plasmodium.
- The life cycle of many sporozoa involves both a vertebrate and an invertebrate host.
Advanced Usage
- In scientific literature: The term "sporozoa" is sometimes used in a historical or broad morphological sense, though modern classifications may place these organisms into more specific groups like Apicomplexa.
- Early parasitology texts grouped these parasites under the general heading of sporozoa.
Variants and Related Words
- Sporozoan (n): An individual organism belonging to the Sporozoa.
- The sporozoan invaded the host's liver cells.
- Apicomplexa (n): The current phylum name that includes many organisms historically called sporozoa, characterized by an apical complex used for penetrating host cells.
Synonyms
- Apicomplexan (especially in modern taxonomic contexts).
- Parasitic protozoan (a broader descriptive term).
Related Phrases
- Sporozoite (n): The infective, motile stage of a sporozoan life cycle, often transmitted by a vector.
- The sporozoite is the form injected by the mosquito.
Noun
-
strictly parasitic protozoans that are usually immobile; includes plasmodia and coccidia and piroplasms and malaria parasites
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