| 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: | 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] |