n :  a genus of flagellate protozoans (family Mastigamoebidae) that are parasites in the liver and intestinal mucosa esp. of poultry, and are usu. considered to include a single species (H. meleagridis) that causes blackhead his*to*mo*nad n his*to*mo*nal adj 
 
 
 
Similar sounding terms:  his·ta·mi·nase 
 
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