Webster's English Dictionary

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sporozoan

spo.ro.zo.an \.spo-r-*-'zo--*n, .spo.r-\ \-'zo--*l\ n [NL Sporozoa, class 
   name, fr. spor- + -zoa] : any of a large class (Sporozoa) of strictly 
   parasitic protozoans that ha ve a complicated life cycle usu. involving 
   both asexual and sexual generations often in different hosts and include 
   important pathogens (as malaria parasites, coccidia, and piroplasms) - 
   spo.ro.zo.al aj