drainage (n.)
- aspiration
- bleeding
- bloodletting
- clearance
- clearing
- cupping
- defecation
- dehydration
- depletion
- desiccation
- discharge
- drafting
- drain
- drawing
- drying
- effluence
- efflux
- effusion
- egress
- elimination
- emptying
- evacuation
- evaporation
- excretion
- exhalation
- exhaust
- exhaustion
- gush
- insolation
- mummification
- outfall
- outflow
- outpouring
- phlebotomy
- removal
- runoff
- sucking
- suction
- tapping
- unloading
- venesection
- venting
- voidance
- voiding
- withering
