| ARS | Anti-Rabies Serum |
|---|---|
| ARS | acquiescence response scale; adult Reye's syndrome; alcohol-related seizures; alizarin red S; American Radium Society; American Rhinologic Society; antirabies serum; arsphenamine; arylsulfatase; autonomously replicating sequence |
| Ars | arsphenamine |
| ARSA | American Reye's Syndrome Association; arylsulfatase A |
| ARSACS | autosomal recessive spastic ataxia of Charlevoix-Saguenay |
| ARSC | arylsulfatase C; Associate of the Royal Society of Chemistry |
| ARSM | acute respiratory system malfunction |
| ARSPH | Associate of the Royal Society for the Promotion of Health |