What does APS stand for?

What does APS mean?

APS	Anti-Pressure Surge Academic & Science » Chemistry
APS	Anti Pronation System Miscellaneous » Unclassified
APS	Awnings Pegs Supplies Miscellaneous » Unclassified
APS	American Philatelic Society Miscellaneous » Hobbies
APS	Attorneys' Process Service Community » Law
APS	AquaBio Products Sciences Business » Firms
APS	Australian Public Service Regional » Australian
APS	Adapter Protein with Pleckstrin homology and SRC homology 2 domains Medical » Human Genome
APS	IEEE Antennas and Propagation Society Academic & Science » IEEE
APS	Auxiliary Power Supply Governmental » NASA
APS	Automated Payload Switch Governmental » NASA
APS	Acquisition Processor Subsystem Governmental » NASA
APS	Active Phase Switching Computing » Hardware
APS	Aerial Port Squadron Governmental » Military
APS	Army Pre-positioned Stocks Governmental » Military
APS	Alpha Strategic Business » London Stock Exchange
APS	American Philosophical Society Academic & Science » Libraries
APS	Adjustment processing system Computing » Software