D defs.my
Entry 1 sense Webster, 1913

Deflector

/dĭf-lĕk'-tẽr/ · De·flect·or · IPA /dɪˈflɛktə(ɹ)/
01 n. 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).
  1. 1.
    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).(Mech.)