Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,921,363,854 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

zona pellucida

   Also found in: Medical, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
zo·na pel·lu·ci·da  (zn p-ls-d, pl-y-)
n.
The thick, solid, transparent outer membrane of a developed mammalian ovum. Also called oolemma.
[New Latin zna pellcida : Latin zna, belt, girdle + Latin pellcida, feminine of pellcidus, transparent.]
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.zona pellucida - thick membrane around the mammalian ovum; can be penetrated by one sperm in the fertilization process; usually remains around the fertilized egg until it is implanted in the wall of the uterus
zona, zone - (anatomy) any encircling or beltlike structure
Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link 		Feedback
Add definition
Mentioned in?  References in periodicals archive?   Dictionary browser?   Full browser?
 
This prevents other sperm from adhering to the cell membrane and allows enough time [5 minutes] for the organism to release calcium ions that harden the thick outer membrane, the zona pellucida that surrounds it.
The creating hand of God: 'fearfully, wonderfully made' by Shea, John B. / Catholic Insight
Some others are zona pellucida components needed for sperm-egg interaction, structural glycoproteins which help in binding tissues.
Are Glycoproteins Good for the Body? by Zachary Thompson / Food/cooking/nutrition community
Normally, the gene produces a protein that coats the outside of the egg, the zona pellucida, and is vital for sperm to latch on to to achieve fertilisation.
Scientists develop gene contraceptive free of hormones by guardian.co.uk / guardian.co.uk
 
 
 
Dictionary, Thesaurus, and Translations
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information 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.