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zona pellucida
zo·na pel·lu·ci·da Z0021925 (zō′nə pə-lo͞o′sĭ-də, pĕl-yo͞o′-)n. A thick transparent extracellular coat that surrounds the mammalian ovum and is composed of glycoproteins. Spermatozoa bind to the zona pellucida during fertilization.
[New Latin zōna pellūcida : Latin zōna, belt, girdle + Latin pellūcida, feminine of pellūcidus, transparent.]zo•na pel•lu•ci•da (ˈzoʊ nə pəˈlu sɪ də, pɛlˈyu-)
n., pl. zo•nae pel•lu•ci•dae (ˈzoʊ ni pəˈlu sɪˌdi, pɛlˈyu-) a transparent jellylike substance surrounding the ovum of mammals. Also called zo′na. [1835–45; < New Latin; see zone, pellucid] Thesaurus| Noun | 1. | 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 uteruszona, zone - (anatomy) any encircling or beltlike structure |
Translationszona pellucida
zona pellucida[′zō·nə pə′lüs·əd·ə] (histology) The thick, solid, elastic envelope of the ovum. Also known as oolemma. zona pellucida
zona [zo´nah] (L.) 1. zone.2. herpes zoster.zona fascicula´ta the thick middle layer of the adrenal gland.zona glomerulo´sa the outermost layer of the adrenal cortex.zona ophthal´mica herpetic infection of the cornea.zona pellu´cida 1. the transparent, noncellular, secreted layer surrounding an ovum. Zona pellucida. From Applegate, 2000.2. area pellucida.zona radia´ta a zona pellucida exhibiting conspicuous radial striations.zona reticula´ris the innermost layer of the adrenal cortex.zona stria´ta a zona pellucida exhibiting conspicuous striations.zo·na pel·lu·ci·daan extracellular coat, rich in glycoprotein, surrounding the oocyte; it contains microvilli of the oocyte and cellular processes of follicular cells and appears homogeneous and translucent under the light microscope. Synonym(s): pellucid zonezona pellucida (zō′nə pə-lo͞o′sĭ-də, pĕl-yo͞o′-)n. A thick transparent extracellular coat that surrounds the mammalian ovum and is composed of glycoproteins. Spermatozoa bind to the zona pellucida during fertilization.zona pellucida The glycoprotein-rich membrane surrounding the plasma membrane of an oocyte (egg), which binds spermatozoa and is required to initiate the acrosome reaction.zo·na pel·lu·ci·da (zō'nă pel-lū'sid-ă) An extracellular coat surrounding the oocyte; it consists of a layer of microvilli of the oocyte, cellular processes of follicular cells, and an intervening substance rich in glycoprotein; it appears homogeneous and translucent under the light microscope.
Synonym(s): pellucid zone. zona pellucida a mucoprotein membrane that surrounds the egg of mammals. It is secreted by the ovarian follicle cells.See ZP
See ZPzona pellucida
Related to zona pellucida: blastocyst, Granulosa cellsWords related to zona pellucidanoun thick membrane around the mammalian ovumRelated Words |