1. 
   proamnion
   An area of the extraembryonic membranes beneath, and in front of, the developing head of a young embryo which remains without mesoderm for some time. ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?proamnion
   
   
2. 
   proamnion
   Type: Term Pronunciation: prō-am′nē-on Definitions: 1. An area of the extraembryonic membranes beneath, and in front of, the developing head of a young embryo that remains without mesoderm for some time.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=72138
   
   

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