Relating to the walls of a body cavity or the parietal bones that form the sides and top of the skull. In anatomy, it often describes structures that line or form the outer boundaries of organs or cavities.
From Latin 'parietalis' meaning 'of a wall,' derived from 'paries' meaning wall. The term evolved to describe anatomical structures that form boundaries or walls of body cavities.
The parietal bones are where you'd feel the soft spots (fontanelles) on a baby's head! These bones don't fully fuse until around age 2, allowing the brain to grow rapidly during early development while still protecting it.
Complete word intelligence in one call. Free tier — 50 lookups/day.