| Name: | yolk |
|---|---|
| Synonyms: | yolk cell |
| Definition: | Giant syncytial uncleaved cell containing nutrient store for embryonic development in the form of semicrystalline phospholipoprotein and contained within yolk granules. |
| Ontology: | Anatomy Ontology [ZFA:0000084] |
| Name: | anatomical region |
|---|---|
| Synonyms: | |
| Definition: | A 3D region in space without well-defined compartmental boundaries; for example, the dorsal region of an ectoderm. |
| Ontology: | Spatial Ontology [BSPO:0000070] |