Uterus/ˈjuːtərəs/ Definition 1 of 2Pro Tip 1/3Human Biology Emphasize that 'uterus' refers to human reproductive anatomy crucial for pregnancy. The uterus is examined during a gynecological check-up. Pro Tip 2/3Gender Specific It's exclusive to female biology; don't use when referring to the male reproductive system. After puberty, the female uterus is fully developed. Pro Tip 3/3Pregnancy Context Use 'uterus' when discussing where human pregnancy develops over nine months. During pregnancy, the uterus expands to accommodate the growing baby.