impeller

from WordNet (r) 3.0 (2006)
impeller
    n 1: the blade of a rotor (as in the compressor of a jet engine)
    
from The Collaborative International Dictionary of English v.0.48
Impeller \Im*pel"ler\, n.
   One who, or that which, impels.
   [1913 Webster]
    

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