slinger ring

from WordNet (r) 3.0 (2006)

slinger ring
    n 1: dispenser consisting of a tubular ring around the propeller
         hub of an airplane through which antifreeze solution is
         spread over the blades

from The Collaborative International Dictionary of English v.0.48

slinger ring \slinger ring\ n.
   tubular ring around the propeller hub of an airplane through
   which antifreeze solution is spread over the blades. [WordNet
   1.5]

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