Any pathologic condition or disease of the macula, the small spot in the retina where vision is keenest. Also called macular retinopathy.
- Mad deer disease
See Chronic wasting disease.
- Magendie, foramen of
An opening from the fourth ventricle in the brain to the central canal of the upper end of the spinal cord.
A soft-bodied wormlike larva of a fly that lays its eggs in living or especially in decaying tissues. The living or rotting material furnishes heat for the hatching of the eggs and food for the newly hatched maggots. Certain blowfly maggots — notably, those of the blackbottle fly (Phormia regina) and the greenbottle fly (Phaenicia […]
- Magic bullet
Or, sometimes, silver bullet. 1. The perfect drug to cure a disease with no danger of side effects. The term magic bullet was first used in this sense by the German scientist Paul Ehrlich to describe antibody and, later, the drug salvarsan that he created to treat syphilis. 2. In general, a magical solution to […]
Named after a town in present day Turkey where an ore containing magnesium carbonate was mined. Milk of Magnesia, the laxative, is magnesium hydroxide.