or chiefly Brit  hy*per*pro*lac*tin*ae*mia  n :  the presence of an abnormally high concentration of prolactin in the blood hy*per*pro*lac*tin*emic or chiefly Brit  hy*per*pro*lac*tin*ae*mic  adj 
 
 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2026.