in vitro fertilization
Pronunciation: (in VEE-troh FER-tih-lih-ZAY-shun)
A procedure in which eggs are removed from a woman’s ovary and combined with sperm outside the body to form embryos. The embryos are grown in the laboratory for several days and then either placed in a woman’s uterus or cryopreserved (frozen) for future use.
Source: NCI Dictionary of Cancer Terms2005-08-24