Dictionary

impeller

noun im·pel·ler \im-ˈpe-lər\

Definition of IMPELLER

1
:  one that impels
2
a :  a rotor located in a conduit to impart motion to a fluid
b :  a blade of a rotor

Variants of IMPELLER

im·pel·ler also im·pel·lor \im-ˈpe-lər\

First Known Use of IMPELLER

1685

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