| Acronym | Definition |
|---|
| TMOS | The Moment of Silence (gaming) |
| TMOS | Traffic Management Operating System |
| TMOS | Time Multiplexed Optical Shutter (Uni-Pixel Displays, Inc.) |
| TMOS | TSAT (Transformational Satellite Communications System) Mission Operations System |
| TMOS | Tetramethylorthosilicate |
| TMOS | Traffic Management Operating System (Big-IP) |
| TMOS | The Man of Steel (aka Man of Steel; also seen as MOS) |
| TMOS | Turbine Monitoring System (software) |
| TMOS | Tucker-Maxon Oral School |
| TMOS | Thermosetting |
| TMOS | Telecommunications Management & Operations Support (Ericsson) |
| TMOS | Tactical Meteorological Observing Set |
| TMOS | Transmission/Market Operations Subcommittee (ERCOT) |
| TMOS | Tunneling-diode Metal Oxide Silicon (National Scientific Corporation) |
| TMOS | The Mike O'Meara Show (radio talk show) |
| TMOS | TEAM Mucho Incorporated (stock symbol) |
| TMOS | Trust Management in Open Systems |
| TMOS | Tentative Military Occupation Specialty |
| TMOS | The Mortgage Operating System (The Mortgage Operation, UK) |
| TMOS | The Masks of Sentinel (fantasy novel by Paul Tozer) |
| TMOS | Tellabs Multi-service Operating System |