self-seal·​ing ˌself-ˈsē-liŋ How to pronounce self-sealing (audio)
: capable of being sealed by pressure without the addition of moisture
self-sealing envelopes
: capable of sealing itself (as after puncture)
a self-sealing tire

Examples of self-sealing in a Sentence

Recent Examples on the Web The port itself is self-sealing, which gave us ease when removing the hose. Lindsay Tigar, Peoplemag, 15 Aug. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'self-sealing.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1847, in the meaning defined at sense 1

Time Traveler
The first known use of self-sealing was in 1847

Dictionary Entries Near self-sealing

Cite this Entry

“Self-sealing.” Dictionary, Merriam-Webster, Accessed 14 Jun. 2024.

Kids Definition


: capable of sealing itself (as after puncture)
a self-sealing tire
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