What is the meaning of Starburst?

A violent explosion, or the pattern (likened to the shape of a star) supposed to be made by such an explosion.

A symbol similar to an asterisk, but with additional rays: .

A region of space with an unusually high rate of star formation.

A period in time during which a region of space experiences an unusually high rate of star formation.

To experience an unusually high rate of star formation.

To explode; to burst out violently via, or in such a manner as to cause, an explosion.

To make a starburst pattern.

Source: wiktionary.org