prescreen /-skrēn/ [L, prae + ME, scren] , 1. v. , to evaluate a person or a group of people to identify those who are at greater risk of development of a specific condition in order to select those who are in particular need of special diagnostic procedures or health care. 2. (Informal) n., a rapid, superficial examination of a person who does not appear to be acutely ill. It may include taking a medical history.