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单词 parafovea
释义

parafovean.

Brit. /ˌparəˈfəʊvɪə/, U.S. /ˌpɛrəˈfoʊviə/
Origin: Formed within English, by derivation. Etymons: para- prefix1, fovea n.
Etymology: < para- prefix1 + fovea n., after parafoveal adj.
Anatomy.
An annular area of the retina immediately surrounding the fovea. Cf. perifovea n.
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the world > life > the body > sense organ > sight organ > parts of sight organ > [noun] > retina > fovea
fovea1849
foveola1849
parafovea1933
perifovea1963
1933 Proc. Royal Soc. B. 113 516 For the parafovea the maximum in the blue has now degenerated to no more than a slight swelling on the left-hand slope of the central maximum.
1944 Jrnl. Optical Soc. Amer. 34 713/1 Rods, though absent from the fovea, appear in the parafovea and increase to a maximum density within the area of the retina to which the bright field image is projected.
1970 J. A. Howard Aerial Photo-ecol. xiii. 141 The fovea is most sensitive to green light at 0·555μ whilst in subdued light the para-fovea responds most to light at 0·515μ.
1993 Vision Res. 33 2747/2 We investigated the effect of stimulus orientation on the perceived direction of motion in the parafovea.
This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022).
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n.1933
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