retinal

R1E1T1I1N1A1L1
UK/ˈɹɛt.ɪn.əl/US/ˈɹɛt.ən.əl/US/ˈɹɛt.nəl/US/ˈɹɛt.əˌnæl/

adjective

Of or pertaining to the retina.

Similar
retinaldehyderetinene
OriginProto-Indo-European *h₂élisder.? ← English retina →
Less commonScrabble 7
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Meanings

retinal1

adjectiveretinal (not comparable)
  1. not comparablerelationalmedicineOf or pertaining to the retina.

retinal2

nounretinal (countable and uncountable, plural retinals)

plural retinals

  1. countableuncountablebiochemistryA yellow to orange aldehyde derived from vitamin A that is formed from rhodopsin by the action of light and in combination with proteins forms the visual pigments of the retinal rods and cones.

    Synonyms: retinaldehyde, retinene

Synonyms & antonyms

nounA yellow to orange aldehyde derived from vitamin A that is formed from rhodopsin by the action of light and in combination with proteins forms the visual pigments of the retinal rods and cones.

Similar
retinaldehyderetinene

More synonyms by meaning

nouneither of two yellow to red retinal pigments formed from rhodopsin by the action of light

Similar
retinene
Broader
pigment
Also see
retinene

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

retinal · adjective

  1. Englishretina
  2. Proto-Indo-European*h₂el-
  3. Proto-Indo-European*h₂élisder.?
  4. Englishretinal

From retina + -al (“of or pertaining to”).

Full word history & related roots →

retinal · noun

  1. Englishretina
  2. Akkadian𒎎𒋆𒁉𒍣𒁕 (guḫlum)
  3. Aramaicכוחלא (kuḥlā)
  4. Arabicكُحْل (kuḥl)
  5. Andalusian Arabicكُحُول (kuḥūl)
  6. Latinalcohol
  7. Proto-Indo-European*de
  8. Proto-Indo-European*déh₁
  9. Proto-Italic*dē
  10. Latindē
  11. Latinde-
  12. Proto-Indo-European*wed-
  13. Proto-Indo-European*wódr̥
  14. Proto-Hellenic*údōr
  15. Ancient Greekῡ̆̔́δωρ (hū̆́dōr)
  16. Ancient Greekῠ̔δρο- (hŭdro-)
  17. GermanAldehyd
  18. Englishaldehydeclip.
  19. Englishretinal

From retina + -al (“aldehyde”).

Full word history & related roots →

Translations

Chinese Mandarin 視網膜的 /视网膜的, 視黃醛 /视黄醛
  • 視網膜的 /视网膜的 (shìwǎngmó de)of or pertaining to the retina
  • 視黃醛 /视黄醛 (shìhuángquán)aldehyde pigment
Greek ρετινάλη
  • ρετινάλη (retináli)aldehyde pigment
Portuguese retiniano, retínico
  • retinianoof or pertaining to the retina
  • retínicoof or pertaining to the retina
Spanish retiniano, retinal
  • retinianoof or pertaining to the retina
  • retinalof or pertaining to the retina
  • retínicoof or pertaining to the retina
Tagalog busiligin
  • busiliginof or pertaining to the retina

Rhymes & wordplay

Rhymes with retinal

vitreoretinalsubretinalantiretinalcerebroretinalchorioretinalcilioretinalcolliculoretinalcorneoretinalelectroretinalepiretinalextraretinalhemiretinalintraretinalneoretinalneuroretinalnonretinalpanretinalperiretinalpreretinaltapetoretinaltransretinal
All rhymes →

Anagrams

reliantlatrineratlineLatinerlarnitetrainelentrail
Cite this entry
APA

retinal. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/retinal

MLA

“retinal.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/retinal. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “retinal,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/retinal.

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