Name: | sperm |
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Synonyms: | sperm cell, spermatozoid, spermatozoon |
Definition: | A mature male germ cell that develops from a spermatid. |
Ontology: | Anatomy Ontology [ZFA:0009006] |
Name: | absence of anatomical entity |
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Synonyms: | anatomical entity absence |
Definition: | A quality denoting the lack of an anatomical entity or cellular component. |
Ontology: | Phenotypic Quality Ontology [PATO:0040060] |