choroid

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UK/ˈkɔː.ɹɔɪd/UK/ˈkɒɹ.ɔɪd/US/ˈkɔɹˌɔɪd/

adjective

Resembling the chorion, particularly in containing many blood vessels.

UncommonScrabble 13

Meanings

adjectivechoroid (not comparable)
  1. not comparableanatomyResembling the chorion, particularly in containing many blood vessels.
nounchoroid (plural choroids)

plural choroids

  1. anatomyThe pigmented vascular layer of the eyeball between the retina and the sclera.

Synonyms & antonyms

nouna highly vascular membrane in the eye between the retina and the sclera; a dark pigmentation minimizes the scattering of light inside the eye

Broader
membranetissue layer
Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Ancient Greekχοροειδής
  2. New Latinchoroides
  3. Englishchoroid

From New Latin choroides, from Ancient Greek χοροειδής (khoroeidḗs, alteration of χοριοειδής (khorioeidḗs, “like the afterbirth”)), from χόριον (khórion, “membrane that encloses the fetus in the womb, afterbirth”) + -ειδής (-eidḗs, “-like”).

Full word history & related roots →

Translations

Arabic مَشِيمِيَّة
  • مَشِيمِيَّة (mašīmiyya)vascular layer of the eye
Catalan coroide
  • coroidevascular layer of the eye
Chinese Mandarin 脈絡膜 /脉络膜
  • 脈絡膜 /脉络膜 (màiluòmó)vascular layer of the eye
Czech cévnatka
  • cévnatkavascular layer of the eye
Esperanto koroido
  • koroidovascular layer of the eye
Finnish suonikalvo
  • suonikalvovascular layer of the eye
French choroïde
  • choroïdevascular layer of the eye
German Aderhaut
  • Aderhautvascular layer of the eye
Hungarian érhártya
  • érhártyavascular layer of the eye
Icelandic æða, æðahimna
  • æðavascular layer of the eye
  • æðahimnavascular layer of the eye
Italian coroide
  • coroidevascular layer of the eye
Latvian dzīslene
  • dzīslenevascular layer of the eye
Norwegian Bokmål årehinne
  • årehinnevascular layer of the eye
Persian مشیمیه
  • مشیمیه (mašimiye)vascular layer of the eye
Polish naczyniówka
  • naczyniówkavascular layer of the eye
Spanish coroides
  • coroidesvascular layer of the eye
Swedish åderhinna
  • åderhinnavascular layer of the eye
Turkish damar tabaka
  • damar tabakavascular layer of the eye

Rhymes & wordplay

Anagrams

Cite this entry
APA

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

MLA

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

Chicago

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

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