Definition - What does Intrauterine mean?
Intrauterine refers to being located within the uterus or the uterine cavity.
FertilitySmarts explains Intrauterine
For example, an intrauterine device (IUD) is a form of conception that is inserted into the uterine cavity. Also, intrauterine development refers to the development of an embryo within the uterus. An intrauterine pregnancy refers to a pregnancy that is developing normally within the uterus as opposed to an ectopic pregnancy that occurs outside of the uterus.