| Rank | Abbreviation | Meaning |
|---|
| ***** | UACS | Upper Airway Cough Syndrome
| |
| *** | UACS | Umbilical Artery Catheters
| |
| *** | UACS | Unsupplemented Active Control Subjects
| |
| *** | UACS | User Agent Clients
| |
| *** | UACS | University American College Skopje
| |
| *** | UACS | Undergraduate Association of Computing Science
| |
| *** | UACS | União de Associações do Comércio E Serviços
| |
| *** | UACS | Uninterruptible AC Supply
| |
| *** | UACS | Unincorporated Area Councils
| |
| *** | UACS | Untrained Ambulatory Control Subjects
| |
| ** | UACS | United Achievers' Community Services
| |
| ** | UACS | University of Arkansas Clinton School
| |
| ** | UACS | Utah Association of Community Services
| |
| ** | UACS | UV-B absorbing compounds
| |
| ** | UACS | Universal Adaptive Consulting Services
| |
| ** | UACS | United Anglo Caribbean Society
| |
| ** | UACS | Unsupplemented Ambulatory Control Subjects
| |
| * | UACS | Unrestricted Ambulatory Control Subjects
| |
| * | UACS | Universal Access Copier System
| |
| * | UACS | Unloaded Ambulatory Control Subjects
| |
| * | UACS | Uganda AIDS Commission Secretariat
| |