macula

Noun

• a patch of skin that is discolored but not usually elevated; caused by various diseases

• a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision

• a cooler darker spot appearing periodically on the sun's photosphere; associated with a strong magnetic field

Related words

• Synonyms: 
  macule , macula lutea , macular area , yellow spot , sunspot