| Acronym | Definition |
|---|
| PTSC➣Paper Toilet Seat Cover |
| PTSC➣Parabolic Trough Solar Collector (solar energy) |
| PTSC➣Petroleum Technical Service Company (China) |
| PTSC➣Pentagon Telecommunications Service Center |
| PTSC➣Provisioning Technical Service Committee (Oasis) |
| PTSC➣Parent Teacher Student Conference |
| PTSC➣Portland Timbers Supporters Club (Portland, OR) |