| M | giant crabs of Japan |
|---|---|
| M | very large deep-water Japanese crab |
| M | alligator snapping turtles |
| M | large species having three ridges on its back |
| M | everything that exists anywhere |
| M | relating to or constituting a macrocosm |
| M | abnormally large red blood cell (associated with pernicious anemia) |
| M | anemia in which the average size of erythrocytes is larger than normal |
| M | anemia in which the average size of erythrocytes is larger than normal |
| M | the presence of macrocytes in the blood |
| M | a genus of Melolonthidae |
| M | common North American beetle: larvae feed on roots and adults on leaves and flowers of e.g. rose bushes or apple trees or grape vines |