Definitions

from The Century Dictionary.

  • To rise in swarms; swarm up.
  • To cause to rise in a swarm or swarms; raise in a swarm.

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

  • verb rare To rise, or cause to rise, in a swarm or swarms.

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

  • verb transitive To rise in a swarm.
  • verb intransitive To cause to rise in a swarm.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

up- +‎ swarm

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Examples

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