What does PSSM stand for?

What does PSSM mean?

PSSM	Principles and Standards for School Mathematics Academic & Science » Mathematics
PSSM	Parallel-Split Shadow Map Computing » Software
PSSM	Position-specific scoring matrix Academic & Science
PSSM	Polysaccharide Storage Myopathy Medical » Veterinary
PSSM	Persatuan Sains Sosial Malaysia (Malai) International
PSSM	Providence Self Sufficiency Ministries Community » Religion
PSSM	Puget Sound Strategic Ministries Community » Religion