1
: a sealing agent
a radiator sealant
2
: a plastic material applied to parts of teeth with imperfections (such as pits and fissures) to prevent dental decay
Examples of sealant in a Sentence
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Carroll’s clinic offers dental exams, cleanings, digital X-rays, sealants, fluoride treatments, nitrous oxide (laughing gas), extractions, composite (white) fillings, and general restorative services, according to a news release.
—
Thomas Goodwin Smith, Baltimore Sun, 22 Nov. 2024
The Environmental Protection Agency said PFAS are used in cleaning products, non-stick cookware, paints, varnishes, and sealants as well as in certain shampoo, dental floss, and cosmetics.
—Bill Kearney, Sun Sentinel, 5 Feb. 2024
Minor problems can be fixed by hand with a waterproof sealant or screwdriver.
—Lauren Penington, The Denver Post, 24 Oct. 2024
No less than 205 meters long, the 16-meter-high, rectangular building was made up essentially of steel shipping containers and paper tubes made from recycled paper, with inner and outer waterproof membranes and coated with a waterproof sealant.
—Justin Davidson, Curbed, 18 July 2024
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Thomas Goodwin Smith, Baltimore Sun, 22 Nov. 2024
The Environmental Protection Agency said PFAS are used in cleaning products, non-stick cookware, paints, varnishes, and sealants as well as in certain shampoo, dental floss, and cosmetics.
—Bill Kearney, Sun Sentinel, 5 Feb. 2024
Minor problems can be fixed by hand with a waterproof sealant or screwdriver.
—Lauren Penington, The Denver Post, 24 Oct. 2024
No less than 205 meters long, the 16-meter-high, rectangular building was made up essentially of steel shipping containers and paper tubes made from recycled paper, with inner and outer waterproof membranes and coated with a waterproof sealant.
—Justin Davidson, Curbed, 18 July 2024
See all Example Sentences for sealant
Dictionary Entries Near sealant
Cite this Entry
“Sealant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sealant. Accessed 18 Dec. 2024.
Copy CitationMedical Definition
sealant
noun
seal·ant
ˈsē-lənt 
: a plastic material that is applied to parts of teeth (as the occlusal surfaces of molars and premolars) with imperfections (as pits and fissures) usually to prevent dental decay
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