Medical Dictionary

phimosis

noun phi·mo·sis \fī-ˈmō-səs, fi-\
plural phi·mo·ses \-ˌsēz\

Medical Definition of PHIMOSIS

:  tightness or constriction of the orifice of the foreskin arising either congenitally or postnatally (as from balanoposthitis) and preventing retraction of the foreskin over the glans

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