Panic

Webster's Dictionary of the English Language

·adj By extension: A sudden widespread fright or apprehension concerning financial affairs.

II. Panic ·noun A plant of the genus Panicum; panic grass; also, the edible grain of some species of panic grass.

III. Panic ·adj Extreme or sudden and causeless; unreasonable;

— said of fear or fright; as, panic fear, terror, alarm.

IV. Panic ·adj A sudden, overpowering fright; ·esp., a sudden and groundless fright; terror inspired by a trifling cause or a misapprehension of danger; as, the troops were seized with a panic; they fled in a panic.