Source : Webster's Revised Unabridged Dictionary (1913)

Perseid \Per"se*id\, n. [From {Perseus}.] (Astron.)
   One of a group of shooting stars appearing annually about the
   10th of August. They are probably fragments of Swift's comet
   1862 (III).

Perseid \Per"se*id\, n. (Astron.)
   One of a group of shooting stars which appear yearly about
   the 10th of August, and cross the heavens in paths apparently
   radiating from the constellation Perseus. They are beleived
   to be fragments once connected with a comet visible in 1862.