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• n  (anatomy) any encircling or beltlike structure

• In the process, though, the researchers had to strip away an outer coating, called the zona pellucida, that is essential to development.
• Finally, after a third failure, they tried a different approach: doctors retrieved a fresh batch of eggs, and this time they used assisted zona hatching, in which the egg's .
• Some sperm lack the ability to penetrate the egg's outer membrane, or zona pellucida, often as a result of old testicular injuries or early exposure to toxic chemicals.

• zone

News & Articles

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• Luis Otero Gonzáles arrestado por robo en Muhlenberg
  Gracias a Mike  Himmelberger un mecánico de Muhlenberg Luis Otero González pudo ser arrestado bajo sospecho de robo. Las autoridades dicen que el sospechoso no tiene donde vivir y estaba tratando de forzar la entrada en varias casas. Pero fue capturado tras la llamada al 911 de Himmelberger. Carla Roldan, residente de la zona esta sorprendida del incidente. " Aquí es una zona tranquila ...
  June 13, 2013 - WFMZ Eastern Pennsylvania and Western New Jersey
• Paul Theroux’s ultimate safari across Africa a masterful account
  “The Last Train to Zona Verde: My Ultimate African Safari” by Paul Theroux (Houghton-Mifflin-Harcourt, 353 pages, $27)
  June 9, 2013 - The Wichita Eagle

Quotes

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• Tracy Lawrence in Country Standard Time
  I am excited about having Zona on RCR. It's going to be nice having a true country singer in this format, and we look forward to a lot of success with both Zona and Rocky Comfort Records,said Lawrence.
• Daniel Ortega in Bloomberg
  The truth is that Zona Francas has seen rapid growth, rapid employment,Ortega said today at speech in Managua to celebrate international workers' day.