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Definition of Zona radiata
1. Noun. (biology) A radiately striated membrane situated next to the yolk of an ovum, or separated from it by a very delicate membrane only. ¹
¹ Source: wiktionary.com
Medical Definition of Zona radiata
1. The thickened cell membrane of the ovum in forms, such as certain amphibia, in which it appears radially striated under the light microscope; with the electron microscope the striations can be seen to be microvilli. Synonym: membrana striata, striated membrane, zona radiata. (05 Mar 2000)
Lexicographical Neighbors of Zona Radiata
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