| Name: | sperm |
|---|---|
| Synonyms: | sperm cell, spermatozoid, spermatozoon |
| Definition: | A mature male germ cell that develops from a spermatid. |
| Ontology: | Anatomy Ontology [ZFA:0009006] |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |