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piwi.

A class of genes originally identified as encoding regulatory proteins responsible for maintaining incomplete differentiation in stem cells and maintaining the stability of cell division rates in germline cells.

4 characters2 syllables approx.English language

Meaning & usage

noun/ˈpiwi/
  1. A class of genes originally identified as encoding regulatory proteins responsible for maintaining incomplete differentiation in stem cells and maintaining the stability of cell division rates in germline cells.

    attributive
  2. a small Australian magpie lark, also known as a Murray magpie.

Where this word comes from

Short for P-element induced wimpy testis in Drosophila.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.