cervix UK /ˈsɜː.vɪks/US /ˈsɝ.vɪks/ noun3 •The necklike portion of an organ or part of the body. •The cervix uteri, or lower, narrow portion of the uterus where it joins with the top end of the vagina.Screening involves taking a small sample of cells from the cervix and looking for high-risk HPV that could develop into cancer if left untreated. — 2023 •The neck.I put my hands on Madeleine's hot cheeks, making a prize cup of my hands and her cervix, and tilted her head to one side. — 1979 formscervices · cervixes