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Noun: vapour lock
Usage: Brit, Cdn (US: vapor lock)
  1. A stoppage in a pipeline caused by gas bubbles (especially a stoppage that develops in hot weather in an internal-combustion engine when fuel in the gas line boils and forms bubbles that block the flow of petrol to the carburettor)
    - vapor lock [US]

Derived forms: vapour locks

Type of: block, blockage, closure, occlusion, stop, stoppage

Encyclopedia: Vapour lock