The sepals of a flower, typically forming a whorl that encloses the petals and forms a protective layer around a flower in bud.Compare with corolla‘Similar to the color traits, plant prickles were also evaluated for individual organs including stem, leaf, and flower and fruit calyxes.’
- ‘Unlike with other bulb flowers, the calyxes of amaryllises do not open quickly, so consider this when using them in flower arrangements for certain occasions.’
- ‘The flower has a tubular calyx with four ovate lobes and a corolla with four overlapping petals.’
- ‘He gave special attention to the pubescence of the leaves and of the calyces.’
- ‘The real attraction, though, is the dramatic calyxes that remain after the small flower petals fall.’
A cuplike cavity or structure.
- 2.1A portion of the pelvis of a mammalian kidney.‘The renal pelvis, calyces, and renal vein were grossly uninvolved.’
- ‘You seem to be having a stone in the lower calyx of the right kidney.’
- ‘In this case, the calyces are compressed by the markedly distended renal pelvis.’
- ‘The major calyces unite to form the renal pelvis which is the expanded upper end of the ureter.’
- ‘The base and sides are surrounded by cortical tissue, and the apex protrudes into the renal calyces.’
- 2.2The cavity in a calcareous coral skeleton that surrounds the polyp.
space, chamber, hollow, hole, pocket, pouch
- ‘The polyp lived on top of a tabula in a depression in the top of the coral called the calyx.’
- 2.3The plated body of a crinoid, excluding the stalk and arms.‘The pattern of proximal axes being more aborally inclined than are distal axes is similar to that in C axes of crinoid calyx plates.’
- ‘Although very few crinoid calyxes were encountered in the samples, columnals were ubiquitous and provided the basis for identification of crinoid genera.’
- ‘The characters that make this species distinct from the members of the C. sampsoni clade are primarily the thin-plated calyx and basal plates, which are higher than wide.’
- ‘In most extant crinoids, primarily the shallow-water ones, there are two body regions, the calyx and the rays.’
- ‘In unstalked crinoids, the cirri are located on the end of the calyx opposite the mouth, and are used by the animal to grasp the substratum.’
- 2.1A portion of the pelvis of a mammalian kidney.
Late 17th century from Latin, from Greek kalux ‘case of a bud, husk’, related to kaluptein ‘to hide’.