macula
名词 macula:
a cooler darker spot appearing periodically on the sun's photosphere; associated with a strong magnetic field
同义词:sunspot
a yellowish central area of the retina that is rich in cones and that mediates clear detailed vision
同义词:macula lutea, macular area, yellow spot
a patch of skin that is discolored but not usually elevated; caused by various diseases
同义词:macule