(redirected from Pale Sulfonated Shale Oil)
PSSOPass the Slipped Stitch Over (the knit stitch)
PSSOPolice Skills and Standards Organisation (UK)
PSSOPale Sulfonated Shale Oil (medical treatment)
PSSOProperty Seizure and Sale Order (Australia)
PSSOPurchasing, Safety and Security Office (National University of Singapore; Kent Ridge, Singapore)
PSSOPain Syndrome of Spinal Origin (biomedicine)
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