Reflector \Re*flect"or\ (-[~e]r), n. [Cf. F. r['e]flecteur.]

1. One who, or that which, reflects. --Boyle.

2. (Physics)
   (a) Something having a polished surface for reflecting light or heat, as a mirror, a speculum, etc.
   (b) A reflecting telescope.
   (c) A device for reflecting sound.

Source: Webster's Revised Unabridged Dictionary (1913)