(n) a concave reflector used to produce a parallel beam when the source is placed at its focus or to focus an incoming parallel beam, Syn.paraboloid reflector
n. (Mech.) That which deflects, as a diaphragm in a furnace, or a cone in a lamp (to deflect and mingle air and gases and help combustion). [ 1913 Webster ]
n. [ Cf. F. réflecteur. ] 1. One who, or that which, reflects. Boyle. [ 1913 Webster ]
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. [ 1913 Webster ]
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