2 example sentences using fontanelle.
    Fontanelle used in a sentence
  
Fontanelle in a sentence as a noun
I believe they mean enlarging of the fontanelle as is typical in those with hydrocephalus.
A bulging fontanelle also occurs with other pathologies like meningitis.
Fontanelle definitions
            noun
            
      any membranous gap between the bones of the cranium in an infant or fetus
See also: fontanel