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
This luxe set has made it into Oprah’s Favorite Things List thanks to its ultra-soft, light-as-air spacer fabric.
—Amelia McBride, Travel + Leisure, 29 Sep. 2025
Johnson is not the floor spacer that MPJ was.
—Troy Renck, Denver Post, 25 Sep. 2025
Mathews, a career 38.2 percent 3-point sharpshooter on 3.9 triple tries per, could be a helpful floor spacer in limited minutes.
—Alex Kirschenbaum, MSNBC Newsweek, 20 Sep. 2025
Much more than just a one-dimensional floor spacer, Johnson will be another essential hub in a system built on trust (especially that of Jokic, who has the highest respect for the smartest players), movement, and unselfishness.
—Joel Rush, Forbes.com, 2 Sep. 2025
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Amelia McBride, Travel + Leisure, 29 Sep. 2025
Johnson is not the floor spacer that MPJ was.
—Troy Renck, Denver Post, 25 Sep. 2025
Mathews, a career 38.2 percent 3-point sharpshooter on 3.9 triple tries per, could be a helpful floor spacer in limited minutes.
—Alex Kirschenbaum, MSNBC Newsweek, 20 Sep. 2025
Much more than just a one-dimensional floor spacer, Johnson will be another essential hub in a system built on trust (especially that of Jokic, who has the highest respect for the smartest players), movement, and unselfishness.
—Joel Rush, Forbes.com, 2 Sep. 2025
See All Example Sentences for spacer
Cite this Entry
“Spacer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spacer. Accessed 10 Oct. 2025.
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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