Definitions for maculaˈmæk yə lə; -ˌli
This page provides all possible meanings and translations of the word macula
Random House Webster's College Dictionary
mac•u•laˈmæk yə lə; -ˌli(n.)(pl.)-lae
a spot, esp. on the skin.
an opaque spot on the cornea. an irregularly oval, yellow-pigmented area on the central retina containing color-sensitive rods and the central point of sharpest vision.
Ref: Also called yellow spot.
Origin of macula:
1350–1400; ME < L: spot, blemish
a cooler darker spot appearing periodically on the sun's photosphere; associated with a strong magnetic field
macula, macula lutea, macular area, yellow spot(noun)
a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision
a patch of skin that is discolored but not usually elevated; caused by various diseases
An oval yellow spot near the center of the retina of the human eye, histologically defined as having two or more layers of ganglion cells, responsible for detailed central vision.
A spot, as on the skin, or on the surface of the sun or of some other luminous orb.
A rather large spot or blotch of color.
In planetary geology, an unusually dark area on the surface of a planet or moon.
Origin: From macula.
a spot, as on the skin, or on the surface of the sun or of some other luminous orb
a rather large spot or blotch of color
Macula of retina
The macula or macula lutea is an oval-shaped pigmented area near the center of the retina of the human eye. It has a diameter of around 5.5 mm. The macula is subdivided into the umbo, foveola, foveal avascular zone, fovea, parafovea, and perifovea areas. After death or enucleation the macula appears yellow, a color that is not visible in the living eye except when viewed with light from which red has been filtered. The anatomical macula at 5.5 mm is much larger than the clinical macula which, at 1.5 mm, corresponds to the anamotical fovea. The clinical macula is seen when viewed from the pupil, as in ophthalmoscopy or retinal photography. The anatomical macula is defined histilogically in terms of having two or more layers of ganglion cells. Near its center is the fovea, a small pit that contains the largest concentration of cone cells in the eye and is responsible for central, high resolution vision. The umbo is the center of the foveola which is located at the centre of fovea.
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