| Name: | median fin |
|---|---|
| Synonyms: | |
| Definition: | Fin that is an unpaired fin located in the sagittal plane of the organism. |
| Ontology: | Anatomy Ontology [ZFA:0005597] |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |