| Term: | protoneuromast extracellular region | 
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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: | protoneuromast | 
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| Synonyms: | immature neuromast, proto neuromast, proto-neuromast | 
| Definition: | A group of about 20 cells deposited by the migrating lateral line primordium. A few hours after deposition these cells mature to form the neuromast. | 
| Ontology: | Anatomy Ontology [ZFA:0005227] | 
| Name: | extracellular region | 
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| Synonyms: | extracellular | 
| Definition: | The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite. | 
| Ontology: | GO: Cellular Component [GO:0005576] QuickGO AmiGO |