Zona pellucida



the transparent, noncellular layer surrounding the ovum of mammals, often having radial striations.
Historical Examples

Foulis regards the zona pellucida as a product of the ovum and not of the follicle.
The Works of Francis Maitland Balfour, Volume 1 Francis Maitland Balfour

zona pellucida zona pel·lu·ci·da (pə-lōō’sĭ-də, pěl-yōō’-)
n.
The thick solid transparent outer membrane of a developed mammalian ovum. Also called oolemma.

Tagged:

Read Also:

  • Zona reticularis

    zona reticularis zona reticularis zona re·tic·u·lar·is (rĭ-tĭk’yə-lâr’ĭs) n. The inner layer of the cortex of the adrenal gland in which cell cords form a network. Historical Examples Most superficially is the zona glomerulosa, then the zona fascicularis, and most deeply the zona reticularis. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 Various

  • Zona tecta

    zona tecta zona tecta zona tec·ta (těk’tə) n. See arcuate zone.



  • Zonal

    of or relating to a or . of the nature of a . Historical Examples It underlies the whole significance of zonal location, continental and insular. Influences of Geographic Environment Ellen Churchill Semple zonal range: Upper Sonoran areas that are moist yet safe from continuous inundation. North American Jumping Mice (Genus Zapus) Philip H. Krutzsch […]

  • Zonal geranium

    a widely cultivated plant, Pelargonium hortorum, having white, pink, or red flowers and rounded leaves that are sometimes banded or blotched with contrasting colors.



Disclaimer: Zona pellucida definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.