frenzy

Short definition from Wiktionary

Noun

1. 1
   A state of wild activity or panic.
2. 2
   A violent agitation of the mind approaching madness; rage.

Adjective

1. 1
   Mad; frantic.

Verb

1. 1
   To render frantic.
2. 2
   To exhibit a frenzy, such as a feeding frenzy.