fovea
/ˈfəʊvɪə/(亦作fovea centralis)
noun
(pl. foveae /-vɪiː/)
- Anatomy a small depression in the retina of the eye where visual acuity is highest. The centre of the field of vision is focused in this region, where retinal cones are particularly concentrated.【剖】中央凹（视觉敏感度最高处）, 视网膜中央凹。
派生词
foveal
adjective词源
late 17th cent.: from Latin, literally 'small pit'.