• The outermost part of a flower, consisting of the sepals.
  • None
  • The expanded, cup-like, deciduous structure on the ends of the stems of certain entoproctous <em>Polyzoa</em>, containing most of the organs and hence practically an individual.
  • A depression formed by the more or less reticulate folding of the skin, as in the intromittent organs of snakes.
  • A cup-shaped excavation on the surface of the ovary which remains after the rupture of a Graafian vesicle.
  • Any circular piece which resembles in form the calyx of a flower.
  • In <em>botany</em>, in general, the outer set of the envelops which form the perianth of a flower.
  • In <em>human anatomy</em>, one of the cup-like or infundibuliform beginnings of the ureter in the pelvis of the kidney, surrounding the apices of the Malpighian pyramids, each receiving usually more than one pyramid.
  • In <em>zoology</em>: The cup at the base of the ciliated tentacles on the lophophore or oral disk of polyzoans. See <internalXref urlencoded="Plumatella">Plumatella</internalXref>.
  • The pedicellated Graafian follicle, ovarian capsule, or ovisac of a bird, consisting of two membranes of lax tissue and blood-vessels, rupturing at a point called the stigma to discharge the ovum, then collapsing, and finally becoming absorbed.
  • In crinoids, the cup at the summit of the stȧlk or stem, whence the brachia radiate and on the surface of which is the mouth.
  • In <em>Hydrozoa</em>, a generative capsule developed in the axils of a branched hydroid stock, containing either medusa-buds or sexual organs.
  • Some other calyciform or cup-shaped part or organ of an animal.
  • The covering of a flower. See <xref urlencoded="flower">flower</xref>.
  • A cuplike division of the pelvis of the kidney, which surrounds one or more of the renal papillæ.
  • A <xref>cup</xref>-like <xref>structure</xref> in the <xref>mammalian</xref> <xref>kidney</xref>.
  • The outermost <xref>whorl</xref> of <xref>flower</xref> parts, comprising the <xref>sepals</xref>, when it is not the same in appearance as the next such whorl (the <xref>corolla</xref>).
  • The crown of a <xref>crinoid</xref>.
  • (botany) the whorl of sepals of a flower collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud; usually green
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