noun
EXAMPLES FROM CORPUS
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A single photo-cell on the retina may be an input to several nodes.
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Given that the number of W-cells in the retina probably exceeds the number of Y-cells, this is unsatisfactory.
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In Fig. 2 we show at the upper right a typical fragment of foveal retina from one of our preparations.
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It makes the light rays take up more space on your retina .
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The image of the insect may pass over the edge of my retina rather than the more acute central region.
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The insect may be 50 yards away, and so make only a tiny image on my retina .
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Their inputs come directly from the retina .
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There are at least two layers of neurones in the retina , in addition to the light-sensitive cells themselves.