RETINA

retina

(noun) the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve

Source: WordNet® 3.1


Etymology

Noun

retina (plural retinas or retinae or retinæ)

(anatomy) The thin layer of cells at the back of the eyeball where light is converted into neural signals sent to the brain.

Anagrams

• atrine, ratinĂ©, retain, tanier, tearin', tin ear

Source: Wiktionary


Ret"i*na, n. Etym: [NL., from L. rete a net. Cf. Reticule.] (Anat.)

Definition: The delicate membrane by which the back part of the globe of the eye is lined, and in which the fibers of the optic nerve terminate. See Eye.

Note: The fibers of the optic nerve and the retinal blood vessels spread out upon the front surface of the retina, while the sensory layer (called Jacob's membrane), containing the rods and cones, is on the back side, next the choroid coat.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

3 May 2025

DESIRABLE

(adjective) worth having or seeking or achieving; “a desirable job”; “computer with many desirable features”; “a desirable outcome”


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