| 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: | opacity |
|---|---|
| Synonyms: | |
| Definition: | An optical quality which obtains by virtue of the ability of the bearer to absorb visible light. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000957] |