Intrauterine growth retardation
A procedure in which a fine catheter (tube) is inserted through the cervix (the natural opening of the uterus) into the uterus (the womb) to deposit a sperm sample directly into the uterus.
The purpose of IUI is to achieve fertilization and pregnancy.
IUI is a relatively simple procedure.
"Intrauterine" is within the uterus.
"Insemination" is from "in-" + "semen," seed = seed in.
So, "intrauterine insemination" = seed in the uterus.