self-sealing

adjective self-seal·ing \ ˌself-ˈsē-liŋ \

Definition of self-sealing

1 : capable of being sealed by pressure without the addition of moisture
  • self-sealing envelopes
2 : capable of sealing itself (as after puncture)
  • a self-sealing tire

First Known Use of self-sealing

1851

in the meaning defined at sense 1

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