Embryology is the subdivision of developmental biology that studies embryos and their development. The formation and development of an embryo is known as embryogenesis.

References

• Merriam-Webster Online - "embryology 1: a branch of biology dealing with embryos and their development" Merriam-Webster Online Dictionary. 2005. http://www.merriam-webster.com (9 Feb. 2005). From Merriam-Webster's Collegiate® Dictionary, 10th Edition.
• Merriam-Webster's Medical Desk Dictionary