a sudden overwhelming fear, with or without cause, that produces hysterical or irrational behavior, and that often spreads quickly through a group of persons or animals.
Definition: 2
an instance, outbreak, or period of such fear.
Definition: 3
Finance. a sudden widespread fear concerning financial affairs leading to credit contraction and widespread sale of securities at depressed prices in an effort to acquire cash.
Definition: 4
Slang. someone or something that is considered hilariously funny: The comedian was an absolute panic.
Definition: 5
of the nature of, caused by, or indicating panic: A wave of panic buying shook the stock market.