| Acronym | Definition |
|---|
| RCMM➣Registered Competitive Market Maker (NYSE member) |
| RCMM➣Remote Control Multimedia (Philips' remote control spec) |
| RCMM➣Riverside County Mounted Mavericks (Lake Elsinore, CA) |
| RCMM➣Root Certificate Management Messages |
| RCMM➣Rat Isolated Colonic Muscularis Mucosae (pharmacology) |