AACS

Advanced Access Control System

AACS

Attitude and Articulation Control Subsystem onboard a spacecraft.

AACS

American Academy of Cosmetic Surgery
Found on http://www.encyclo.co.uk/local/20895

AACS

Attitude & Articulation Control Subsystem.
Found on http://www.braeunig.us/space/glossary.htm
No exact match found