angle of retroversion
Definition: the angle formed by a line drawn through the center of the longitudinal axis of the neck and head of the humerus meeting a line drawn along the transverse axis of the condyles, when the base is viewed from above, looking straight down from above the head of the humerus; the normal angle of retroversion of the humerus is between 20 and 40 degrees.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.

