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.
The anteverted lies over the bladder. The midposition uterus stands uâ¦p in the pelvis. The retroverted uterus lies back toward the rectum. All three positions are normal. A woman can get pregnant if her uterus is in either of the three positions.