pro·to·zo·on /-ˈzoˌɑn/
  pro·to·zo·on /ˌprotəˈzoˌɑn/ 名詞
  (複protozoa)原生動物,原蟲
  Pro·to·zo·ön n.; pl. Protozoa   Zool. (a) One of the Protozoa. (b) A single zooid of a compound protozoan.
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  protozoon
       n : any of diverse minute acellular or unicellular organisms
           usually nonphotosynthetic [syn: protozoan]