n, pl  -o*ses   :  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) .
 
 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.