Source : Webster's Revised Unabridged Dictionary (1913)

Panic-stricken \Pan"ic-strick`en\, Panic-struck
\Pan"ic-struck`\, a.
   Struck with a panic, or sudden fear. --Burke.

Source : WordNet®

panic-stricken
     adj : thrown into a state of intense fear or desperation; "became
           panicky as the snow deepened"; "felt panicked before
           each exam"; "trying to keep back the panic-stricken
           crowd"; "the terrified horse bolted" [syn: {panicky}, {panicked},
            {panic-struck}, {terrified}, {frightened}]