n, pl  -mo*ses   :  a respiratory disease with symptoms like those of influenza that is endemic in the Mississippi and Ohio river valleys of the U.S., is caused by infection with a fungus of the genus Histoplasma (H. capsulatum), and is marked by benign involvement of lymph nodes of the trachea and bronchi usu. without symptoms or by severe progressive generalized involvement of the lymph nodes and the reticuloendothelial system with fever, anemia, leukopenia and often with local lesions (as of the skin, mouth, or throat) .
 
 
 
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