Definitions

from The Century Dictionary.

  • noun A bursting up; a breaking a way up and through; an uprush: as, an upburst of lava.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The act of bursting upwards; a breaking through to the surface; an upbreak or uprush.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The act of bursting upwards; a breaking through to the surface; an upbreak or uprush; as, an upburst of molten matter.

Etymologies

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