zona pellucida: Meaning and Definition of

zo•na pel•lu•ci•da

Pronunciation: (zō'nu pu-l'si-du, pel-y'-), [key]
— pl. zo•nae pel•lu•ci•dae
  1. the transparent, noncellular layer surrounding the ovum of mammals, often having radial striations.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
zonal geranium zonate
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