| Name: | ball |
|---|---|
| Synonyms: | yolk ball |
| Definition: | The anterior round region of the yolk cell present after the yolk extension forms during the segmentation period. |
| Ontology: | Anatomy Ontology [ZFA:0000006] |
| Name: | opaque |
|---|---|
| Synonyms: | clouding, cloudy, non-transparent |
| Definition: | A optical quality inhering in a bearer by virtue of the bearer's not being clear; not transmitting or reflecting light or radiant energy. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000963] |