anatomy developmental biology embryology http://purl.bioontology.org/ontology/MESH/Q000196 http://purl.obolibrary.org/obo/NCIT_C16542 https://en.wikipedia.org/wiki/Category:Embryology https://en.wikipedia.org/wiki/Embryology https://www.wikidata.org/wiki/Q131683 The branch of biology that studies the prenatal development of gametes (sex cells), fertilization, and development of embryos and fetuses. Additionally, embryology encompasses the study of congenital disorders that occur before birth, known as teratology. embryologic embryological