| MSGV | mouse salivary gland virus |
|---|---|
| MSLA | mouse-specific lymphocyte antigen |
| MTg | mouse thyroglobulin |
| MTV | mammary tumor virus; metatarsus varus; mouse mammary tumor virus |
| MU | megaunit; mescaline unit; methyluric [acid]; Montevideo unit; motion unsharpness; motor unit; mouse ... |