| Mackinac | Mackinac |
| mackintosh | mackintosh |
| Macky Sall | Macky Sall |
| MacLean Stevenson | McLean Stevenson |
| Maclura | Osage-orange |
| macramé | macramé |
| macreuse | scoter |
| macreuse brune | velvet scoter |
| Macreuse à front blanc | Surf Scoter |
| Macrien | Macrianus Major |
| Macrien le Jeune | Macrianus Minor |
| Macrin | Macrinus |
| Macro spicule | Macro spicule |
| macro-économie | macroeconomics |
| Macrobe | Ambrosius Theodosius Macrobius |
| macrobiotique | macrobiotic |
| macrocosme | macrocosm |
| Macroderma | Ghost Bat |
| Macrogalidia | Sulawesi Palm Civet |
| Macrogol | Polyethylene glycol |
| macrolentille | gravitational lens |
| Macrolepidoptera | Macrolepidoptera |
| Macrolide | Macrolide |
| Macrolides | Macrolide |
| MacRoman | Mac OS Roman |
| Macromedia Fireworks | Adobe Fireworks |
| Macromedia FlashPaper | Macromedia FlashPaper |
| Macroordinateur | Mainframe computer |
| Macropedius | Macropedius |
| macrophyte | macrophyte |
| Macropodidae | Kangaroo |
| Macropodus opercularis | Paradise fish |
| Macropoma | Macropoma |
| Macropus | Macropus |
| Macropus agilis | Agile Wallaby |
| Macropus eugenii | Tammar Wallaby |
| Macropus irma | Western Brush Wallaby |
| Macropus parryi | Pretty-faced Wallaby |
| macroscopique | macroscopic |
| Macrosociologie | Macrosociology |
| Macross | The Super Dimension Fortress Macross |
| Macross Plus | Macross Plus |
| Macross Zero | Macross Zero |
| Macrotarsomys | Macrotarsomys |
| Macrotis leucura | Lesser Bilby |
| Macroturbulence | Macroturbulence |
| Macroule | Eurasian Coot |
| Macrovipera | Macrovipera |
| Macrovirus | Macro virus |
| Macroéconomie | Macroeconomics |
| Mactaquac | Mactaquac |
| MacTutor | MacTutor History of Mathematics archive |
| maculage | blotting |
| maculation | blotting |
| maculature | wastepaper |
| macule | smear |
| maculer | smudge |
