oocyte gamete donation oocyte donation http://purl.bioontology.org/ontology/MEDDRA/10053370 http://purl.bioontology.org/ontology/MESH/D018587 https://en.wikipedia.org/wiki/Category:Egg_donation https://en.wikipedia.org/wiki/Egg_donation https://www.wikidata.org/wiki/Q1115376 Transfer of preovulatory oocytes from donor to a suitable host. Oocytes are collected, fertilized in vitro, and transferred to a host that can be human or animal. egg donation oocyte donations ovum donation oocyte donor