prefrontal /pɹiːˈfɹʌn.təl/adjective 2noun 1forms 3 adjective2 •Of, pertaining to or situated in the anterior part of the frontal lobe. •Of, pertaining to or situated in front of the frontal bone. noun1 •A prefrontal bone, scale, etc. formsprefrontals · more prefrontal · most prefrontal