Engineering Abbreviations
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
'Ma' to 'Md', 'Me' to 'Ml', 'Mm' to 'Mz'
| m | - | meter [3.281 feet] |
| M | - | material dispersion coefficient |
| M | - | mega, (106) |
| MAC | - | medium access control [sublayer] |
| MAC | - | Message Authentication Code |
| MAN | - | metropolitan area network |
| MAP | - | manufacturers' automation protocol |
| maser | - | microwave amplification by stimulated emission of radiation |
| MAT | - | Microwave Annealing Treatment |
| MAU | - | Medium Access Control |
| Mb | - | Mega-Bit [1024 x 1024 bits] |
| MB | - | MegaByte [1024 x 1024 bytes] |
| MBB | - | Make Before Break |
| MBB | - | Moisture Barrier Bag |
| MBps | - | MegaByte per second |
| MAU | - | Medium Access Unit |
| MC | - | Master Clock |
| MCA | - | Micro Channel Architecture [PC Bus] |
| MCA | - | Multichip Assembly |
| MCC | - | maintenance control circuit |
| MCEB | - | Military Communications-Electronics Board |
| MCM | - | Multi-Chip Module [MCM Packaging] |
| MCM | - | multicarrier modulation |
| MCP | - | Media and Communications Processor |
| MCP | - | Memory Chip Package [Memory] |
| MCS | - | Master Control System |
| MCU | - | MicroComputer Unit CPU Vendors |
| MCW | - | modulated continuous wave |
| MCXO | - | microcomputer compensated crystal oscillator |
| MDI | - | Medium Dependent Interface |
| MDF | - | main distribution frame |
| MDIO | - | Management Data Input/Output [IEEE802.3, MDIO Interface] |
| MDT | - | Mean Down Time |
