1.  macula(n = noun.phenomenon) sunspot - a cooler darker spot appearing periodically on the sun's photosphere; associated with a strong magnetic field;
is a kind of dapple, fleck, maculation, patch, speckle, spot

2.  macula(n = noun.body) macula lutea, macular area, yellow spot - a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision;
is a kind of area, region
is a part of retina

3.  macula(n = noun.body) macule - a patch of skin that is discolored but not usually elevated; caused by various diseases;
is a kind of dapple, fleck, maculation, patch, speckle, spot
is a part of cutis, skin, tegument
has particulars: freckle, lentigo, liver spot, plague spot
Derived forms verb maculate₂, verb maculate₁

1.  A spot, as on the skin, or on the surface of the sun or of some other luminous orb; called also macule. [1913 Webster]

2.  A rather large spot or blotch of color. [1913 Webster]

macula, n. (pl. maculae)
1 a dark spot, esp. a permanent one, in the skin.
2 (in full macula lutea) the region of greatest visual acuity in the retina.

Derivative:
macular adj. maculation n.

Etymology:
L, = spot, mesh

N  blemish, disfigurement, deformity, adactylism, flaw, defect, injury, spots on the sun, eyesore, stain, blot, spot, spottiness, speck, speckle, blur, tarnish, smudge, dirt, freckle, mole, macula, patch, blotch, birthmark, blobber lip, blubber lip, blain, maculation, scar, wem, pustule, whelk, excrescence, pimple, pitted, freckled, discolored, imperfect, blobber-lipped, bloodshot, injured.

macula lutea