self-sealing
/sɛlfˈsiːlɪŋ
/adjective
1Sealing itself without the usual process or procedure, in particular:His cards are self-sealing and don't require an envelope, and his boxes are already decorated, so no wrapping paper is required.
1.1(Of a pneumatic tyre, fuel tank, etc.) able to seal small punctures automatically.The fuel tanks are self-sealing, with a fuel crossfeed system that provides continuity of supply if one of the fuel circuits fails....
- The fuel system is rated to withstand a 14m crash and the fuel tanks are self-sealing.
- The self-sealing fuel tanks were my idea, but it was Fiona who got the fuel mix just right and we did our first test run with only minor problems and first-degree burns.
1.2(Of an envelope) self-adhesive.
