pronephrons

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A form of pronephron — 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.

Scrabble 18
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Meanings

noun
  1. pluralplural of pronephron
Cite this entry
APA

pronephrons. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/pronephrons

MLA

“pronephrons.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pronephrons. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “pronephrons,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/pronephrons.

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