sealer

¹ American  

[see-ler] / ˈsi lər /

noun

1. an officer appointed to examine and test weights and measures, and to set a stamp upon such as are true to the standard.

2. a substance applied to a porous surface as a basecoat for paint, varnish, etc.

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sealer ² American  

[see-ler] / ˈsi lər /

noun

1. a person or ship engaged in hunting seals.

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sealer ¹ British  

/ ˈsiːlə /

noun

1. a person or thing that seals

2. (formerly in Britain and currently in the US) an official who examines the accuracy of weights and measures

3. a coating of paint, varnish, etc, applied to a surface to prevent the absorption of subsequent coats

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sealer ² British  

/ ˈsiːlə /

noun

1. a person or ship occupied in hunting seals

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Etymology

Origin of sealer¹

First recorded in 1350–1400, sealer is from the Middle English word seler. See seal ¹, -er ¹

Origin of sealer²

First recorded in 1760–70; seal ² + -er ¹

Example Sentences

See Examples For:

sealer

Ford was able to fix the issue with a sealer, and made the change early enough in the design process to avoid a costly rework.

From The Wall Street Journal ● May 5, 2026

The issue is that when the film-forming deck sealer fails, it’s a catastrophic failure.

From Seattle Times ● Jul. 17, 2023

The most recent deck sealer I used showed great promise when I used it three years ago.

From Seattle Times ● Jul. 17, 2023

If the floor is unsealed, you would also have the option of adding traction by using a penetrating sealer or an etching product.

From Washington Post ● Mar. 24, 2023

He’d come along a bit since then—with one-third interest in a sealer.

From "Carry On, Mr. Bowditch" by Jean Lee Latham