Standard Lemma guide

choroid

adj · noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈkɔː.ɹɔɪd/
  • Received-Pronunciation: /ˈkɒɹ.ɔɪd/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /ˈkɔɹˌɔɪd/

1

adj

Meaning 1

Resembling the chorion, particularly in containing many blood vessels.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: anatomy, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The pigmented vascular layer of the eyeball between the retina and the sclera.

Definition source: English Wiktionary via Wiktextract

Topics: anatomy, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

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

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: choroid coat

Antonyms: none provided

Broader terms: membrane, tissue layer

History

Etymology

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”).

Across languages

Translations

21 source translations are retained for this English entry.

  • Arabic: مَشِيمِيَّة (mašīmiyya) — vascular layer of the eye
  • Catalan: coroide — vascular layer of the eye
  • Chinese Mandarin: 脈絡膜 /脉络膜 (màiluòmó) — vascular layer of the eye
  • Czech: cévnatka — vascular layer of the eye
  • Esperanto: koroido — vascular layer of the eye
  • Finnish: suonikalvo — vascular layer of the eye
  • French: choroïde — vascular layer of the eye
  • Galician: coroide — vascular layer of the eye
  • German: Aderhaut — vascular layer of the eye
  • Hungarian: érhártya — vascular layer of the eye
  • Icelandic: æða — vascular layer of the eye
  • Icelandic: æðahimna — vascular layer of the eye
  • Italian: coroide — vascular layer of the eye
  • Latvian: dzīslene — vascular layer of the eye
  • Norwegian Bokmål: årehinne — vascular layer of the eye
  • Persian: مشیمیه (mašimiye) — vascular layer of the eye
  • Polish: naczyniówka — vascular layer of the eye
  • Serbo-Croatian: sudovnjača — vascular layer of the eye
  • Spanish: coroides — vascular layer of the eye
  • Swedish: åderhinna — vascular layer of the eye
  • Turkish: damar tabaka — vascular layer of the eye