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Retinal spot that may degenerate
Answer for the clue "Retinal spot that may degenerate ", 6 letters:
macula
Alternative clues for the word macula
Word definitions for macula in dictionaries
Wikipedia
Word definitions in Wikipedia
Macula (pl. maculae ) is the Latin word for 'spot'. It is used in planetary nomenclature to refer to unusually dark areas on the surface of a planet or moon . They are seen on the icy surfaces of Pluto , Jupiter's moon Europa , Saturn's moon Titan , Neptune's ...
Wiktionary
Word definitions in Wiktionary
n. 1 (context anatomy English) 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. 2 A spot, as on the skin, or on the surface ...
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
plural maculae , from Latin macula "spot, stain," used of various spots (sunspots, markings on minerals, etc.), of uncertain origin. Especially the macula lutea in the eye.
Usage examples of macula.
If he found out something she could report to her controller under Operation Macula, so much the better.
However, the macula lutea, which carries the burden of seeing, contains cones only and virtually no rods.
They are present in increasing concentration as one approaches the macula lutea, where only cones are present.
At the macula lutea and in the immediately surrounding region all three are present, of course.
Neque enim possibile est, ad liquidum purgari ecclesiam, dum in terris est, ita ut neque impius in ea quisquam, neque peccator residere videatur, sed sint in ea omnes sancti et beati, et in quibus nulla prorsus peccati macula deprehendatur.
But somethingperhaps a quake caused by the Tyre Macula nuclear devicehad deflated its insulating raft, and perhaps some biowar macroform had destroyed its heat sink.
He could find nothing in the cornea, nothing in the sclera, nothing in the iris, nothing in the retina, nothing in the lens of the eye, nothing in the luteous macula, nothing in the optic nerve, nothing elsewhere.
The center of the retina, called the macula, is the most active part of the eye and processes the light signals that allow us to do fine work like reading and recognizing facial detail and beauty.
Her skin was speckled with color: pale brown maculae, patches of rose and white, knotty blue veins, crusty places where healing cuts formed fiery lines of red.
I, lined and wrinkled, leaning, tucked in, shaking just a bit in the limbs, aching just a bit in the joints, showing patches and patterns of incorrect color, purples on the legs, brown maculae on the arms, swirls and masses on the face beneath the surgery and appliances.
These become fused into crimson, slightly raised maculae, which in severe cases become further fused into red thickened patches, in which the papules can still be felt and sometimes seen.
Furthermore, in the very center of the macula lutea there is a small depression called the fovea centralis (foh'vee-uh sen-tray'lis.
Look to one side, nevertheless, and the star jumps into view as its light strikes rods, f Contrarily, it is because the cones become progressively less numerous away from the macula lutea that we have so little acuity in peripheral vision in daylight.