| Abbreviation | Definition |
|---|---|
| LUT | Last Update Time |
| LVEED | Large Volume Explosive Eruption Database |
| LZMA | LempelZivMarkov chain Algorithm |
| LZMA | Lempel–Ziv–Markov chain Algorithm |
| M204 | Model 204 Database Management System (Computer Corporation of America) |
| MAC | Moves, Adds, and Changes |
| MADC | Move, Add, Delete, Change |
| MAID | Market Analysis Information Database |
| MAID | Mennonite Archival Image Database |
| malERA | Malaria Eradication Research Agenda |
| MAR | Missing At Random |
| MBCS | Mixed Byte Character Set |
| MBD | Medicare Beneficiary Database |
| MBD | Mercer Benchmark Database |
| MBRB | Metro Bowhunters Resource Base |
| MBUC | Multiple-Bounded Uncertainty Choice |
| MCD | Medicare Coverage Database |
| MCF | Media Container Format |
| MCF | Meta Content Framework |
| MCL | Multinomial Conditional Logic |