Pronephron

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The first part of the urogenital system to be differentiated in a vertebrate embryo, which functions as a simple excretory organ in simpler forms, serves as a provisional kidney in some fish and amphibians, and only appears as a temporary embryonic structure in reptiles, birds, and mammals.

    "In addition, while in the pronephron only vacuolization was noted, the structure of the liver had an atypical appearance and there was a considerable number of erythrocytes scattered among the hepatic chords which themselves were noticeably altered."

Synonyms

All synonyms
pronephrospronephros

Example

More examples

"In addition, while in the pronephron only vacuolization was noted, the structure of the liver had an atypical appearance and there was a considerable number of erythrocytes scattered among the hepatic chords which themselves were noticeably altered."

Etymology

From pro- + nephron.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.