noun
- The most prominent point at the back of the skull, located at the base of the occipital bone.
Usage: anatomy; technical
Examples
- The inion is a landmark used by anthropologists to measure skull dimensions.
- During the physical examination, the doctor palpated the inion at the back of the patient's head.
- The inion serves as an attachment point for several neck muscles.
- Anatomists use the inion as a reference point for skull classification.