washout

Short definition from Wiktionary

Noun

1. 1
   An act of washing or cleaning the inside of something.
2. 2
   An appliance designed to wash out the inside of something.
3. 3
   The erosion of a relatively soft surface by a sudden gush of water; also, a channel produced by this action.
4. 4
   The erosion of a relatively soft surface by a sudden gush of water; also, a channel produced by this action: A breach in a railway or road caused by flooding.
5. 5
   A sporting fixture or other event that cannot be completed because of rain.
6. 6
   An overwhelming victory; a landslide.
7. 7
   A total failure; a disappointment.
8. 8
   An unsuccessful person.
9. 9
   The aerodynamic effect of a small twist in the shape of an aircraft wing.
10. 10
    A destroyed aeroplane.
11. 11
    A trainee who drops out of a training programme.
12. 12
    A period between clinical treatments in which any medication delivered as the first treatment is allowed to be eliminated from a person's body before the second treatment begins.
13. 13
    The cleaning of matter from a physiological system using a fluid; also, the fluid used for such cleaning; or the matter cleaned out from the system.
14. 14
    The action whereby falling rainwater cleans particles from the air.
15. 15
    A place in a mine where ore has been washed away by a flow of water.