Abbreviated Source Abc Secondary abdominal sepsis Abilene and Southern Railway Able Seaman Abrasive Slurry absence seizures Absence status absiemen Absorption Spectrophotometer absorption spectroscopy Absorption Spectrum Abstract Schema Abstract Service abstract start abstract syntax Academia Sinica Académie des Sciences Academy of Science Academy of Sciences Acanthopanax senticosus Acarus siro Accelerated School Access Server Access Signaling Access Stratum Access Switch Access System Accessory spleen Accomplishment Summary