Source : WordNet®

panic
     n 1: an overwhelming feeling of fear and anxiety [syn: {terror}]
     2: sudden mass fear and anxiety over anticipated events; "panic
        in the stock market"; "a war scare"; "a bomb scare led
        them to evacuate the building" [syn: {scare}]
     [also: {panicking}, {panicked}]

panic
     v 1: be overcome by a sudden fear; "The students panicked when
          told that final exams were less than a week away"
     2: cause sudden fear in or fill with sudden panic; "The mere
        thought of an isolation cell panicked the prisoners"
     [also: {panicking}, {panicked}]

panicking
     See {panic}