单词	fovea
释义	fovea noun fo·​vea ˈfō-vē-ə  plural foveae ˈfō-vē-ˌē  -vē-ˌī 1 : a small fossa 2 : a small depression in the center of the macula (see macula sense 2b) that contains only cones and constitutes the area of maximum visual acuity and color discrimination see eye illustration foveal ˈfō-vē-əl  adjective foveate ˈfō-vē-ˌāt  -ət adjective Example Sentences Recent Examples on the Web The fovea, a tiny depression at the center of the retina where visual acuity is highest, does all the heavy lifting while the rest of your vision goes unused. Sonya Collins, Fortune, 6 May 2022 Humans typically move this fovea, the focus of our vision, two or three times a second while tracking something of interest. Joshua Learn | Inside Science, ABC News, 12 Sep. 2021 Most of its light is focused on a small portion of the retina at the back of the eye, called the fovea. Courtney Linder, Popular Mechanics, 17 Jan. 2020 The fovea takes up just about four to five percent of the retina's overall area, but contains most of its nerve endings. Courtney Linder, Popular Mechanics, 17 Jan. 2020 Since that would be rather unwieldy, only one tiny area of the retina—called the fovea—provides this kind of resolution. Tim Vernimmen, Smithsonian, 14 June 2019 Those piercing eyes are much like yours, equipped with 3-D vision and a fovea — a centralized concentration of light receptors — the better to focus and track. Natalie Angier, New York Times, 22 Sep. 2017 The damage occurs in the fovea, a spot in the retina that is responsible for sharp, central vision. Rachael Rettner, Scientific American, 7 July 2017 The ultraviolet light from the sun gets focused from the eye's lens to the center of the retina, called the fovea, Lujan said. Jessica Greif, OregonLive.com, 18 May 2017 See More Word History Etymology New Latin, from Latin, pit First Known Use 1849, in the meaning defined at sense 1 Phrases Containing fovea fovea centralis fovea centralis Medical Definition fovea noun fo·​vea ˈfō-vē-ə  plural foveae -vē-ˌē  -vē-ˌī  1 : a small fossa 2 or fovea centralis -sen-ˈtral-əs, -ˈträl-, -ˈtrāl- : a small depression in the center of the macula that contains only cones and constitutes the area of maximum visual acuity
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