Define: Vapour Lock

UK Accounting Glossary

Definition: Vapour Lock

Quick Summary of Vapour Lock

Vapour lock is the situation whereby the liquid in a pipeline (or tubeline) gets trapped in the line and cannot flow because of vapour formation.

What is the dictionary definition of Vapour Lock?

Dictionary Definition

An interruption in the flow of a liquid through a fuel line or other pipe as a result of vaporisation of a liquid.


Full Definition of Vapour Lock

In internal combustion engines, Vapour lock is a problem caused by liquid fuel changing state to gas while still in the gasoline-fueled fuel delivery system.


Synonyms For Vapour Lock

vapor lock, airlock, occlusion, air lock, vapor-lock

Cite Term

To help you cite our definitions in your bibliography, here is the proper citation layout for the three major formatting styles, with all of the relevant information filled in.

Page URL
Modern Language Association (MLA):
Vapour Lock. Payroll & Accounting Heaven Ltd. March 31, 2020
Chicago Manual of Style (CMS):
Vapour Lock. Payroll & Accounting Heaven Ltd. (accessed: March 31, 2020).
American Psychological Association (APA):
Vapour Lock. Retrieved March 31, 2020, from website:

Definition Sources

Definitions for Vapour Lock are sourced/syndicated and enhanced from:

  • A Dictionary of Economics (Oxford Quick Reference)
  • Oxford Dictionary Of Accounting
  • Oxford Dictionary Of Business & Management

This glossary post was last updated: 31st December 2019.