sealant
Americannoun
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a substance used for sealing, seal, as sealing wax or adhesives.
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any of various liquids, paints, chemicals, or soft substances that may be applied to a surface or circulated through a system of pipes or the like, drying to form a hard, watertight coating.
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Dentistry. any of several transparent synthetic resins applied to the chewing surfaces of molars and premolars in young children and teenagers as a preventive measure against tooth decay in the occlusal pits and fissures.
noun
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any substance, such as wax, used for sealing documents, bottles, etc
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any of a number of substances used for stopping leaks, waterproofing wood, etc
Etymology
Origin of sealant
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The middle ground: He should have brought the sealant in the first place, given that you identified and appraised him of the problem prior to his arrival on the first occasion.
From MarketWatch • Feb. 7, 2026
Its amino acid sequence differs from gyroxine, a toxin taken directly from rattlesnake venom and used in fibrin sealant production.
From Science Daily • Nov. 18, 2025
What ensues is nearly two hours of the false starts and second-guessing that romances use as sealant.
From New York Times • Mar. 7, 2024
That includes “everything from how much water something uses to how do we make sure that the sealant we’re using is easily removed to be able to separate the materials,” she added.
From Seattle Times • Jun. 20, 2023
Beneath the sealant, a red light flicked on.
From "Artemis Fowl" by Eoin Colfer
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
