| Name: | post-vent region |
|---|---|
| Synonyms: | tail |
| Definition: | Organism subdivision which is the part of the body posterior to the vent which includes the anal and caudal fins. |
| Ontology: | Anatomy Ontology [ZFA:0001117] |
| Name: | somite |
|---|---|
| Synonyms: | somitic mesoderm |
| Definition: | Undifferentiated mesodermal components of early trunk or tail segments or metameres, derived from paraxial mesoderm; forms myotomes, sclerotomes and perhaps dermatomes. |
| Ontology: | Anatomy Ontology [ZFA:0000155] |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |