Search Ontology: 
        
        Anatomy Ontology
            chorion
- Term ID
 - ZFA:0000329
 - Synonyms
 - 
    
        
        
 - Definition
 - The egg shell. (1)
 - Appears at
 - Zygote:1-cell (0.0h-0.75h)
 - Evident until
 - Pharyngula:High-pec (42.0h-48.0h)
 - References
 - 
    
        
        
    
    
- TAO:0000329
 
 - Ontology
 - Anatomy Ontology
 
                
                    
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