Definition of siphonage in US English:

siphonage

(also syphonage)

noun

  • See siphon

    • ‘Back syphonage takes place due to emptying of upstream pipework and normally happens when the system is drained or a ruptured pipe causes discharge of the water.’
    • ‘Backflow is an undesirable reversal of normal flow, created by back pressure or back syphonage within a potable water system.’
    • ‘A loud sucking noise in the piping of a fixture indicates that there is a siphonage action which needs correction.’
    • ‘The port protector caps have a wick-type design to assure water passage through the siphonage drain lines.’
    • ‘If the hose is connected with an airtight joint, provision should be made to prevent syphonage.’

Pronunciation

siphonage

/-nij/