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.
1. the bending of an organ so that its top is thrust forward. 2. anterior displacement of a tooth or teeth or of the mandible. anÂ·teÂ·flexÂ·ion. A bending forward; a sharp forward curve or angulation; denoting especially the normal forward bend in the uterus at the junction of corpus and cervix uteri. anteflexion. 1. abnormal forward bending of an organ or part. 2. the normal forward curvature of the uterus. Anteflexion of uterus.