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ENGLISH · A WORD WITH POSSIBILITIES

reniform.

Synonym of kidney-shaped (“having an approximately circular or elongated ovoid shape with an inward curve or indentation on one side”).

8 characters3 syllables approx.English language

Meaning & usage

adj/ˈɹɛnɪfɔːm/Received-Pronunciation/ˈɹiː-/Received-Pronunciation/ˈɹɛnəˌfɔɹm/General-American/ˈɹiː-/General-American
  1. Synonym of kidney-shaped (“having an approximately circular or elongated ovoid shape with an inward curve or indentation on one side”).

    not-comparable
    intussusception with a reniform appearance
    multiple reniform circumscribed fat-containing masses
  2. Synonym of kidney-shaped (“having an approximately circular or elongated ovoid shape with an inward curve or indentation on one side”). Of a leaf: kidney-shaped, with the petiole attached at the notch.

    not-comparable
Where this word comes from

Learned borrowing from Latin rēnis (the genitive singular of rēn (“kidney”); see further at that entry) + English -form (suffix meaning ‘having the form or shape of’), modelled after New Latin rēnifōrmis (“of seeds: kidney-shaped”).

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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.