tamperseal
verbUK /ˈtæmpəsiːl/
US /ˈtæmpərsiːl/
To tamperseal means to close something up tightly so nothing can get out.
She used wax to tamperseal the jar of homemade jam.
OTHER MEANINGS
2. To stamp a mark of approval onto a sealed document.
The clerk tampersealed the certificate with the official crest.
3. To put a final, unchangeable end to a discussion or agreement.
The new law tampersealed the debate over the town budget.
4. To protect a surface by coating it with a thin, airtight layer.
Workers tampersealed the wooden deck before winter arrived.