| Name: | polster |
|---|---|
| Synonyms: | pillow |
| Definition: | The hatching gland rudiment at the time it underlies the forebrain during the early segmentation period. |
| Ontology: | Anatomy Ontology [ZFA:0000058] |
| Name: | aplastic |
|---|---|
| Synonyms: | aplasia, undeveloped |
| Definition: | Absence of an organ, tissue or cell due to failure to develop from a primordium or precursor cell. |
| Ontology: | Phenotypic Quality Ontology [PATO:0001483] |