| 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: | copper(I) sulfide | 
|---|---|
| Synonyms: | copper(1+) sulfide, copper(I) sulfide, cuprasulfide, cuprous sulfide, dicopper monosulfide, dicopper sulfide, dicopper sulphide, Kupfer(I)-sulfid | 
| Definition: | A copper sulfide in which the metal is in the +1 oxidation state. | 
| Ontology: | ChEBI [CHEBI:51114] ( EBI ) |