Webster Dictionary (4.00 / 1 vote) Rate this definition: Proficiency (noun) the quality of state of being proficient; advance in the acquisition of any art, science, or knowledge; progression in knowledge; improvement; adeptness; as, to acquire proficiency in music
Additional terms include: 1  retrocessed uterus: both the superior and inferior ends of the uterus are pushed posteriorly.  severely anteflexed uterus: the uterus is in the same position as normal and bends in the same direction (concave is anterior) but the bend is much more pronounced.
Uterine Biopsy. In endometrial biopsy, a thin, flexible tube (catheter) is passed through the vagina and cervix and into the uterus. A suction device attached to the catheter is used to obtain tissue samples from the lining of the uterus (endometrium); these specimens are sent to a laboratory for analysis.