| Term | Full Form | Category |
|---|---|---|
| STEL | Short Term Exposure Level | Others |
| STEL | Short Term Exposure Limit | Others |
| STEL | Short-Term (15-minute) Exposure Limit | Others |
| STEL | Short-term exposure limit | Others |
| STEL | STU III Standford Telecommunications (Secure Telephone) | Others |