Technology that can considerably slow basic life processes, e.g., breathing or a heartbeat, in a manner that allows for subjects to be later revived.

Examples:
Kamala the Metamorph was kept in a stasis device so that she wouldn't upset the crew with her erotic powers in tng5x21 "The Perfect Mate".

References:
https://en.wikipedia.org/wiki/Suspended_animation https://en.wikipedia.org/wiki/Stasis_(fiction) http://www.sf-encyclopedia.com/entry/suspended_animation