nounpl. -·nas or -·nae·
Origin of retinaML, probably from Classical Latin rete (gen. retis), net from Indo-European base an unverified form ere-, loose, separate from source Classical Greek er?mos, solitary, Lithuanian r?tis, sieve, and (prob.) Classical Latin rarus, rare
nounpl. ret·i·nas, or ret·i·nae
Origin of retinaMiddle English from Medieval Latin rētina from Latin rēte net
(plural retinas or retinae or retinÃ¦)
From Medieval Latin retina, the diminutive form of Latin rete (“net"), probably from the Vulgar Latin phrase (tunica) *retina, literally "net-like tunic", used to describe the blood vessel system at the back of the eye. (Gerard of Cremona may have created this phrase as a translation for Arabic (tabaqa) sabakiva "net-like layer", which translates Ancient Greek á¼€Î¼Ï†Î¹Î²Î»Î·ÏƒÏ„ÏÎ¿ÎµÎ¹Î´Î®Ï‚ (amphiblÄ“stroeidÄ“s) (Ï‡Î¹Ï„ÏŽÎ½ (khitÅn))).