| Term: | opercular flap ossification | 
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| Note: | This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name. | 
| Name: | opercular flap | 
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| Synonyms: | gill cover, gill slit, opercular apparatus, opercular cover, operculum | 
| Definition: | A large flap, covered by integument, supported by several flat bones, actuated by muscles, found on the side of the head covering the gill chambers. | 
| Ontology: | Anatomy Ontology [ZFA:0000555] | 
| Name: | ossification | 
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| Synonyms: | bone biosynthesis, bone formation, osteogenesis | 
| Definition: | The formation of bone or of a bony substance, or the conversion of fibrous tissue or of cartilage into bone or a bony substance. | 
| Ontology: | GO: Biological Process [GO:0001503] QuickGO AmiGO |