Longman Dictionary of Contemporary English - retina
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Retina
retina
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1.
(retinas) Your retina is the area at the back of your eye. It receives the image that you see and then sends the image to your brain. N-COUNT ...Collins COBUILD Advanced Learner's English Dictionary
2.
noun (plural ~s or ~e) Etymology: Middle English rethina, from Medieval Latin ~, probably from Latin rete net Date: 14th century the sensory membrane that lines the eye, is composed of several layers including one containing the rods and cones, and functions as the immediate instrument of vision by receiving the image formed by the lens and converting it into chemical and nervous signals which reach the brain by way of the optic nerve — see eye illustration ...Merriam-Webster Collegiate Dictionary
3.
n. (pl. retinas, retinae) a layer at the back of the eyeball sensitive to light, and triggering nerve impulses via the optic nerve to the brain where the visual image is formed. Derivatives retinal adj. Etymology: ME f. med.L f. L rete net ...Толковый словарь английского языка Oxford English Reference
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English abbreviation dictionary
9.
- 1392, from M.L. retina, probably from V.L. (tunica) *retina, lit. "net-like tunic," on resemblance to the network of blood vessels at the back of the eye, and ult. from L. rete "net." The V.L. phrase may be a translation of Ar. (tabaqa) sabakiva "netlike layer," itself a translation of Gk. amphiblestroeides (khiton). ...Английский Этимологический словарь
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