reniform
adjUK /ˈɹɛnɪfɔːm/ · US /ˈɹɛnəˌfɔɹm/
Etymology 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”).
1
Biology, Chemistry, Geography, Geology, Mineralogy, Natural sciences, Physical sciences Synonym of kidney-shaped (“having an approximately circular or elongated ovoid shape with an inward curve or indentation on one side”).
- intussusception with a reniform appearance
- multiple reniform circumscribed fat-containing masses
4 more examples
- The Bean […] is oval, and not at all reniform'd like the Kidney-Beans.[1745, James Parsons, “Tab. V. Fig. 12. a. Cow-itch, Coughage, or Stinging-Beans.”, in The Microscopical Theatre of Seeds: […], volume I, London: […] F. Needham, […]; and sold by M. Cooper, […], →OCLC, page 201:
- [T]he antheræ are reniform: the germen is oval, and obtuſely trigonal; […]1751, John Hill, “Class the Sixth. Order the First. Division the First. Hexandria Monogynia, Having Corollæ Divided into Three Segments, and Cups to Them. [TRADESCANTIA.]”, in A General Natural History: Or, New and Accurate Descriptions of the Animals, Vegetables, and Minerals of the Different Parts of the World; […], volume II (A History of Plants), London: […] Thomas Osborne, […], →OCLC, part III (Plants Called the More Perfect Ones), page 364:
- In one of the ſegments of the lovver portion of the kidney, there vvas a large reniform Papillæ, in the outer circumference of vvhich a ſmall part of the papillary fleſh vvas vvanting. […] In the oppoſite ſegment, there vvas a fourth reniform Papilla, reſembling the firſt; […]1756, Albert Haller [i.e., Albrecht von Haller], “Observation LIX. A Coalition of the Kidnies.”, in Pathological Observations, Chiefly from Dissections of Morbid Bodies, London: […] D. Wilson and T. Durnam, […], →OCLC, page 178:
- The oxyde of cobalt, […] is found either ſuperficial, interſperſed, or in lumps; ſometimes botryoidal or reniform or bearing particular impreſſions.1799, William Babington, “[Class III. Metals. Order II. Fragile. Genus IV. Cobalt.] Species II. Native Oxyde of Cobalt.”, in A New System of Mineralogy, in the Form of a Catalogue, after the Manner of Baron Born’s Systematic Catalogue of the Collection of Fossils of Mlle. Élénore de Raab, London: […] T[homas] Bensley, […]; and sold by W. Phillips, […]; G. G. and J. Robinsons, […]; and T[homas] Cox, […], →OCLC, page 232:
- Derived terms
- obreniform, reniformly, semireniform, subreniform
- Related terms
- renal