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Pyriform vs Obpyriform - What's the difference?

pyriform | obpyriform | Related terms |

Pyriform is a related term of obpyriform.


As adjectives the difference between pyriform and obpyriform

is that pyriform is pear-shaped while obpyriform is (botany) having a shape that is in outline like that of a pear, with the base at the narrower end.

pyriform

English

Adjective

(en adjective)
  • Pear-shaped.
  • * 1835 , Richard Owen, Descriptive and Illustrated Catalogue of the Physiological Series of Comparative Anatomy Contained in the Museum of the Royal College of Surgeons in London , Volume 3, Part I: Nervous System and Organs of Sense, page 25,
    • The chief difference between this brain and that of the Turtle obtains in the large size of the optic lobe and cerebrum as compared with the cerebellum, in the more pyriform figure of the cerebral hemispheres, and in the transverse fissure of the cerebellum.
  • * 1992 , Edward Bayler Cutler The Sipuncula: Their Systematics, Biology, and Evolution , page 145,
    • Most small worms have a pyriform' shape. Larger worms living in unconsolidated sediments are cylindrical and elongate. Those in rock fissures or coral crevices have stouter and more ' pyriform bodies.
  • * 2006 , R. Peña-Santiago, 14: Dorylaimida Part I: Superfamilies Belondiroidea, Nygolaimoidea and Tylencholaimoidea'', Eyualem Abebe, István Andrássy, Walter Traunspurger (editors), ''Freshwater Nematodes: Ecology and Taxonomy , page 358,
    • In fact, Clavigula'' is very similar to ''Glochidorella , differing from this mainly in the absence of perioral disc (vs. presence), shape of pharyngeal bulb (more cylindrical vs. more pyriform ) and more robust spicules.

    Synonyms

    * peg-top shape (of bird eggs)Ali, Salim; Sidney Dillon Ripley (1983). Handbook of the Birds of India and Pakistan , 2nd ed.,10 vols. Oxford University Press.vol. 2, page 214.

    References

    obpyriform

    English

    Adjective

    (-)
  • (botany) Having a shape that is in outline like that of a pear, with the base at the narrower end.
  • *
    • On fertilization, the archegonia form obyriform calyptrae that are distinctly narrowed at base to form a stalk or peduncle; this does not occur in other Hepaticae.

    Related terms

    * pyriform