Home

For Patients/Families

Glossary of Terms

Fraternal twins
Twins that not genetically identical, also called dizygotic twins. When women ovulate two different eggs and they are fertilized at the same time by two different sperm the result is fraternal twins. These infants have different a genetic make-up although they share the uterus during gestation. In vitro fertilization often results in fraternal twins (or higher order multiples such as triplets or quadruplets).
This is Children's Glossary of Medical Terms - and much more. You'll find the basic definitions and, for many medical subjects, a larger medical context written by an experienced Children's pediatrician. All the definitions are in an easy-to-print format.

Glossary Index

Search Glossary

Date Last Modified: 08/26/2003 14:42