An airtight seal.

simple past tense and past participle of hermetically seal

Sealed with an airtight hermetic seal.

A method of applying a piece of embroidered or printed fabric (i.e. a patch) to another piece of fabric by using a heat activated adhesive. / The adhesive backing itself.

An arctic seal, Cystophora cristata, notable for the fleshy bulge on its forehead and nose.

A measured amount of radioisotope sealed within a protective container.

The main seal of a nation or state that symbolizes its authority, and with which official documents are stamped.

The personal seal of a English or Scottish monarch. / A document to which such a seal is attached; specifically, a warrant demanding a loan. / The position of Keeper of the Privy Seal.

The official public seal of any of several nations.

The public seal of a nation, especially the British Great Seal of the Realm; supreme authority.