Share this entry

Share this page

fovea

Line breaks: fovea
Pronunciation: /ˈfəʊvɪə
 
/
(also fovea centralis)

Definition of fovea in English:

noun (plural 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.
Example sentences
  • When we gaze directly at an object, we hold our eyes in such a position that the image of the object falls on the central, specialized region of the retina - the fovea or macula - where visual acuity and colour vision are best.
  • The fovea creates the most finely detailed vision for such daily tasks as reading, threading a needle, or driving a car.
  • The cones are concentrated in the center of the back of the eye, at its most sensitive region, called the fovea.

Origin

late 17th century: from Latin, literally 'small pit'.

Derivatives

foveal

1
adjective
Example sentences
  • Ophthalmologic examination with the slit lamp demonstrates the iris pigment defect, as well as retinal hypopigmentation and foveal hypoplasia.
  • After a few months most of them had recovered fully, but six were left with faint shadows in their central vision corresponding to a small foveal burn.
  • A plane visible in the foveal field from 5,000 feet would only be visible at 500 feet or less if it's more than five degrees on either side of the foveal field - hardly enough room to take evasive action.

Definition of fovea in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day resilient
Pronunciation: rəˈzilyənt
adjective
able to recoil or spring back into shape…