lagging

noun lag·ging \ ˈla-giŋ \
|Updated on: 6 May 2018

Definition of lagging

: a lag or material used for making lags: such as
a : material for thermal insulation especially around a cylindrical object
b : planking used especially for preventing cave-ins in earthwork or for supporting an arch during construction

Recent Examples of lagging from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lagging.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of lagging

1851

in the meaning defined above

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LAGGING Defined for English Language Learners

lagging

Definition of lagging for English Language Learners

  • : a special material that is used to cover something (such as a pipe) to keep it from losing or gaining heat



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