from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A small fovea.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The center of the fovea in the macula of the eye, approximately 0.35 mm in diameter, containing only cone cells.
from the GNU version of the Collaborative International Dictionary of English
- n. A small depression or pit; a fovea.
from The Century Dictionary and Cyclopedia
- n. In anatomy and zoology, a slight pit or depression found at the summits of the papillœ of the kidney, at the bottom of which are the mouths of the uriniferous tubules.
- n. In botany, in the leaves of Isoetes, above the fovea, a small depression out ofwhich the ligule springs.
- n. In entomology, a small fovea, or rounded impressed spaces.
Median foveola: in Orthoptera; the foveate depression of the vertex between the eyes: = central foveola.
One of these giant cells may be found lying in a Howships foveola at the free end of each spicule.
He addresses the claim that the blind spot is bad design, by pointing out that the blind spot occupies only 0. 25% of the visual field, and is far (15°) from the visual axis so that the visual acuity of the region is only about 15% of the foveola, the most sensitive area of the retina right on the visual axis.
Alia in exigua tuberculi radii foveola fedet (s), iti
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