Definition of vapor lock
:partial or complete interruption of flow of a fluid (such as fuel in an internal combustion engine) caused by the formation of bubbles of vapor in the feeding system
What's Trending Now
More Trending Words
vapor lock
noun
Explore Merriam-Webster
First Known Use of vapor lock
1926
Learn More about vapor lock
Seen and Heard
What made you want to look up vapor lock? Please tell us where you read or heard it (including the quote, if possible).
