| Acronym | Definition |
|---|
| TEOS➣Trusted E-Mail Open Standard |
| TEOS➣Tetraethylorthosilicate |
| TEOS➣Trusted Email Open Standard (email spam prevention solution) |
| TEOS➣Planets: The Exploration of Space (online game) |
| TEOS➣Terrestrial Ecology Observing Systems (University of California, Los Angeles) |
| TEOS➣Traffic Engineering and Operations Section (Oregon Department of Transportation) |
| TEOS➣Tetra Ethyl Oxysilane |