medical Definition of rhinosporidiosis
plural rhinosporidioses
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\-ˌsēz\
:a fungal disease of the external mucous membranes (as of the nose) that is characterized by the formation of pinkish red, friable, sessile, or pedunculated polyps and is caused by an ascomycetous fungus of the genus Rhinosporidium (R. seeberi)
