Standard Lemma guide

nephridium

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

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  • CMU ARPABET: N AH0 F R IH1 D IY0 AH0 M Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A tubular excretory organ in some invertebrates.

Definition source: English Wiktionary via Wiktextract

Topics: biology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The embryonic excretory organ that develops into the kidney.

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

History

Etymology

Etymology tree Proto-Indo-European *negwhrós Proto-Hellenic *nekwhrós Ancient Greek νεφρός (nephrós) English nephro- English -idium English nephridium From nephro- + -idium.

Across languages

Translations

3 source translations are retained for this English entry.

  • Greek: νεφρίδιο (nefrídio) — biology: a tubular excretory organ in some invertebrates
  • Italian: nefridio — biology: a tubular excretory organ in some invertebrates
  • Spanish: nefridio — biology: a tubular excretory organ in some invertebrates