am·ne·sia (ām-nē'zhə) n. Partial or total loss of memory, usually resulting from shock, psychological disturbance, brain injury, or illness.
[Greek amnēsiā, forgetfulness, probably from amnēstiā, from amnēstos, not remembered : a-, not; see a-1 + mimnēskein, mnē-, to remember; see men-1 in Indo-European roots.] am·ne'si·ac' (-nē'zē-āk', -zhē-āk'), am·ne'sic (-zĭk, -sĭk) n. & adj., am·nes'tic (-něs'tĭk) adj.
Main Entry: am·ne·si·ac Pronunciation: -z(h)E-"ak Variant: alsoam·ne·sic/-zik, -sik/ Function:noun : a person affected with amnesia
Main Entry: am·ne·sic Pronunciation: am-'nE-zik, -sik Variant: alsoam·ne·si·ac/-z(h)E-"Ak/ Function:adjective : of or relating to amnesia : affected with or caused by amnesia amnesic patient> amnesic trauma>