What is another word for blastocyst?
Pronunciation: [blˈastəsˌɪst] (IPA) 
Blastocyst is an important term used in embryology to refer to the stage of embryo development that occurs five to six days after fertilization. There are several synonyms that can be used in place of the word 'blastocyst', such as 'pre-implantation embryo', 'early-stage embryo', and 'blastula'. Blastula and blastocyst are often used synonymously, though there is technically a difference between the two stages of development. Blastula refers to the earlier stage of development, while blastocyst refers to the more advanced stage when the embryo has developed a fluid-filled cavity that will eventually implant into the uterine lining. Other synonymous terms used in the field of embryology include 'morula' and 'blastosphere'.
