Definition |
Category |
| Short Term Heat Acclimation | Unclassified |
| Skin Temperature Heater Assembly | Assembly |
| Shining The Holy Ark | Gaming |
| Sindicato dos Técnicos de Handling de Aeroportos (Portuguese: Union of Airport Handling Technicians) | Unions |
| Single-Wound Toroidal Helix Antenna | Electronics |
| South Texas Historical Association | Regional |
| Southern Tier Hockey Association | Hockey |
| Strategic health authority | British Medicine |
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