noun
cervix
SUR-viks/ˈsɜːrvɪks/
The narrow lower part of the uterus that opens into the vagina.
The clinician points to the cervix on an anatomy diagram.

Etymology
Latin cervix meant 'neck.' Its uterine meaning comes from calling the narrow lower part the 'neck of the uterus,' a phrase later shortened to cervix.
In context
once the cervix is fully opened the second stage of labor the actual delivery begins with each contraction of the uterus
More examples
- The doctor explains why cells are collected from the cervix.
- During labor, the cervix gradually opens.
- The cervix forms a passage between the uterus and vagina.
Forms
cervix · cervices · cervixes