| Name: | cleithrum |
|---|---|
| Synonyms: | cleithra |
| Definition: | Transversely oriented bone connecting the occipital region of the skull dorsally and pectoral girdle ventrally; appears near the end of embryogenesis. |
| Ontology: | Anatomy Ontology [ZFA:0000184] |
| Name: | hypoplastic |
|---|---|
| Synonyms: | hypoplasia, underdeveloped |
| Definition: | A physical quality inhering in an organ or tissue by virtue of the bearer's exhibiting a decreased number of cells, typically associated with a decrease in size. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000645] |