The term UTERUS is a four-letter word meaning 'WOMB'. The uterus is a major female reproductive organ located in the pelvic region of the body. It is a hollow, muscular organ that houses and nourishes a developing fetus during pregnancy. The uterus also plays an important role in the menstrual cycle by releasing hormones that regulate the production of eggs and the shedding of the uterine lining.