Definition of downwash in English:

downwash

Syllabification: down·wash
Pronunciation: /ˈdounˌwäSH, -ˌwôSH
 
/

noun

  • The downward deflection of an airstream by an aircraft wing or helicopter rotor blade.
    More example sentences
    • In each case, the helicopter descended into rotor downwash and entered what is commonly called the vortex ring state.
    • There is no propeller blade downwash, which reduces the probability of an accidental mine detonation.
    • This account suggests that at low speed and high angle of attack wing downwash could have a blanking effect on airflow to the engine intakes (made worse by any yaw).

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Pronunciation: kəːf
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a slit made by cutting with a saw