noun which may take the genitive case particle 'no', noun
intrauterine; inside the uterus
Medical and biological term used to describe location, devices, or processes within the uterus.
子宮内の胎児の成長を超音波で確認した。
We checked the growth of the fetus inside the uterus with an ultrasound.
子宮内避妊器具は、子宮内に装着する
An intrauterine contraceptive device is a contraceptive device placed inside the uterus.