plural spacers
: a device or piece used to create or maintain a desired amount of space (as between two parts)
As long as your joints look even, it's more important that you avoid a large grout line at the last tile than worry about sticking to the exact measurement of the spacer.—
Jennifer Stimpson
Jennifer StimpsonStiff spacers of low-expansion materials … may be used to provide a fixed spacing between the end mirrors.—Arthur L. Schawlow
Arthur L. SchawlowUse wood shims or spacers where necessary to compensate for wavy ceilings and to make certain the bottom surfaces of all strips are flush.—Bernard Gladstone
Bernard GladstoneExamples of spacer in a Sentence
Recent Examples on the Web
The Dodgers have already resorted to the tactic three times in the first six weeks of the season, using them as spacers to spread out the starting rotation.
—Bill Plunkett, Orange County Register, 9 May 2024
Berkshire Elite - High Performance Windows Reduces thermal transfer with triple-pane glass units and warm-edge spacers for superior performance.
—Sara Kendall, Miami Herald, 1 May 2024
See all Example Sentences for spacer 
Bill Plunkett, Orange County Register, 9 May 2024
Berkshire Elite - High Performance Windows Reduces thermal transfer with triple-pane glass units and warm-edge spacers for superior performance.
—Sara Kendall, Miami Herald, 1 May 2024
See all Example Sentences for spacer
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'spacer.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Spacer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spacer. Accessed 29 May. 2024.
Copy CitationMedical Definition
spacer
noun
spac·er
ˈspā-sər 
: a region of chromosomal DNA between genes that is not transcribed into messenger RNA and is of uncertain function
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