Zygote Health & Medical Pregnancy & Birth & Newborn Last updated Monday, March/18/2019 1 Share Updated March 05, 2015.Definition: This is what the cell is called after the sperm and egg join.Pronunciation: z-eye-goatCommon Misspellings: zygoatExamples: At the beginning of pregnancy your baby is a zygote. Source... pregnancy baby birth Fetal newborn neonate health Medications Drugs Medical 106 1 Share