macula
- n a cooler darker spot appearing periodically on the sun's photosphere; associated with a strong magnetic field
- n a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision
- n a patch of skin that is discolored but not usually elevated; caused by various diseases
macula lutea
- n a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision
macular area
- n a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision
macular degeneration
- n eye disease caused by degeneration of the cells of the macula lutea and results in blurred vision; can cause blindness