retineum

R1E1T1I1N1E1U1M3

noun

Part of the eye of an invertebrate which corresponds in function with the retina of a vertebrate, hypothetical membrane resembling the retina.

OriginNew Latin retineum ← Medieval Latin retina →
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Meanings

nounretineum (plural retinea)

plural retinea

  1. archaicbiologyPart of the eye of an invertebrate which corresponds in function with the retina of a vertebrate, hypothetical membrane resembling the retina.

Origin

  1. Medieval Latinretina
  2. New Latinretineum
  3. Englishretineum

From New Latin retineum, from Medieval Latin retina. By surface analysis, retin(a) + -eum.

More words from New Latin, Medieval Latin

Full word history & related roots →

Rhymes & wordplay

Anagrams

mutineer
Cite this entry
APA

retineum. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/retineum

MLA

“retineum.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/retineum. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “retineum,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/retineum.

Source: retineum on Wiktionary, CC BY-SA 4.0.