vacuum pack

Short definition from Wiktionary

Verb

1. 1
   To pack something in an airtight container from which some or all of the air is removed, creating a partial vacuum.
2. 2
   Alternative form of vacuum pack.

Noun

1. 1
   An airtight container in which something has been vacuum packed.
2. 2
   A device which becomes rigid when suction is applied to it, used to pack a wound.