fontanelle
/ˌfɑntəˈnɛl/
noun
- Alternative spelling of fontanel; a soft spot on a baby's head where the skull bones have not yet joined together.
- The midwife checked the fontanelle to ensure the baby's head was developing normally.
- The fontanelle allows the baby's head to squeeze through the birth canal.
- A sunken fontanelle can be a sign that the baby needs more fluids.