Pyrotechny. Obs. [ad. G. schwärmer or Du. zwermer, f. schwärmen, zwermen to rove, stray.] A cracker or serpent.
1765. R. Jones, Fireworks, iv. 149. Rockets which go under the denomination of swarmers, are those from two ounces downwards.
1799. G. Smith, Laboratory, I. 7. Cases for Swarmers, or Rockets.
