|sporozoan (ˌspɔːrəˈzəʊən, ˌspɒ-)|
|1.||See plasmodium any parasitic protozoan of the phylum Apicomplexa (or Sporozoa), characterized by a complex life cycle, part of which is passed in the cells of the host, and the production of asexual spores: includes the malaria parasite|
|2.||of or relating to sporozoans|
sporozoan spo·ro·zo·an (spôr'ə-zō'ən) or spo·o·zo·on (-ŏn', -ən)
An organism of the class Sporozoa.
|sporozoan (spôr'ə-zō'ən) Pronunciation Key
Any of numerous parasitic protozoans now classified as apicomplexans.
any protozoan of the (typically) spore-producing phylum Apicomplexa, which is called by some authorities Sporozoa. All apicomplexans are parasitic and lack contractile vacuoles and locomotor processes. Apicomplexans live within the body cavities or the cells of almost every kind of animal, including other apicomplexans. Some genera are pathogenic: Plasmodium causes malaria, and Eimeria and Isospora cause coccidiosis. Apicomplexans feed by absorbing either dissolved food ingested by the host (saprozoic nutrition) or the host's cytoplasm and body fluids. Respiration and excretion occur by simple diffusion through the cell membrane. In the life cycle, sexual and asexual generations may alternate. Sexual reproduction may immediately precede spore formation. Asexual reproduction is by binary or multiple fission (schizogony).
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