Standard Lemma guide

decidua

noun · 2 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.

  • UK: /dɪˈsɪdʒʊə/

1

noun

Meaning 1

A mucous membrane that lines the uterus and is shed during menstruation and modified during pregnancy.

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

2

noun

Meaning 2

the epithelial tissue of the endometrium

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: epithelium, epithelial tissue

History

Etymology

From Latin dēciduus (“falling down or off”), from dēcidō (“fall down”).

Across languages

Translations

9 source translations are retained for this English entry.

  • Bulgarian: плацента (placenta) — a mucous membrane that lines the uterus
  • Catalan: decídua — a mucous membrane that lines the uterus
  • Finnish: katokalvo — a mucous membrane that lines the uterus
  • French: membrane déciduale — a mucous membrane that lines the uterus
  • French: caduque — a mucous membrane that lines the uterus
  • Indonesian: desidua — a mucous membrane that lines the uterus
  • Italian: decidua — a mucous membrane that lines the uterus
  • Portuguese: decídua — a mucous membrane that lines the uterus
  • Spanish: decidua — a mucous membrane that lines the uterus