zona pellucida
noun
zo·na pel·lu·ci·da
ˌzō-nə-pə-ˈlü-sə-də 
-pel-ˈyü-
plural zonae pellucidae
ˌzō-(ˌ)nē-pə-ˈlü-sə-(ˌ)dē
ˌzō-ˌnī-pə-ˈlü-sə-ˌdī,
-pel-ˈyü-
: the transparent more or less elastic noncellular outer layer or envelope of a mammalian ovum that is composed of glycoproteins
Examples of zona pellucida in a Sentence
Recent Examples on the Web
In the meantime the zona pellucida permits tendrils from the granulosa cells to snake through it and embrace the oocyte’s outer membrane.
—
John Travis, Discover Magazine, 11 Nov. 2019
Within this brick wall, the oocyte now enlarges by a factor of a thousand and constructs a translucent shell known as the zona pellucida.
—John Travis, Discover Magazine, 11 Nov. 2019
The morula’s outer membrane, the zona pellucida, was the same egg membrane taken from the cow.
—Amos Zeeberg (discover Web Editor), Discover Magazine, 15 July 2010
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John Travis, Discover Magazine, 11 Nov. 2019
Within this brick wall, the oocyte now enlarges by a factor of a thousand and constructs a translucent shell known as the zona pellucida.
—John Travis, Discover Magazine, 11 Nov. 2019
The morula’s outer membrane, the zona pellucida, was the same egg membrane taken from the cow.
—Amos Zeeberg (discover Web Editor), Discover Magazine, 15 July 2010
Dictionary Entries Near zona pellucida
Cite this Entry
“Zona pellucida.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/zona%20pellucida. Accessed 22 Dec. 2024.
Copy CitationMedical Definition
zona pellucida
noun
zona pel·lu·ci·da
-pə-ˈlü-sə-də
: the transparent more or less elastic noncellular glycoprotein outer layer or envelope of a mammalian ovum often traversed by numerous radiating striae
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