| Acronym | Meaning |
| MCC | Marylebone Cricket Club - Mission Control Centre - Movement Control Centre |
| HPLC | High Performance Liquid Chromatography |
| LJ | La Jolla - Larry Johnson - LaserJet - Library Journal - Linux Journal - LiveJournal - Ljubljana - Lord Justice Of Appeal -Sierra National Airlines (IATA Code) |
| LHC | Large Hadron Collider |
| ICMP | Internet Control Message Protocol |
| DSPMS | D.s.p.m. Suivre (Latin |
| MGS | Mobile Gun System |
| YI | Serbia And Montenegro (deprecated FIPS 10-4 Country Code |
| TRL | Technology Readiness Level |
| BMDO | (U.S.) Ballistic Missile Defense Organization (bim-do) |