TMV stands for several things depending on the context, but the most common meanings are:
- Tobacco Mosaic Virus - a well-known plant virus that affects tobacco and other plants, named for the mosaic-like patterns it causes on leaves. It was the first virus ever discovered.
- Thermostatic Mixing Valve - a device used in plumbing to mix hot and cold water to a safe temperature, preventing scalding and supporting water safety compliance in buildings like hospitals and schools.
Other less common meanings include True Market Value, The Mars Volta (a band), and various technical or organizational acronyms. The two above are the most widely recognized.
