fontanelle or fontanel /fon-tə-nelˈ/

1. A membrane-covered gap between the immature parietal bones in the skull of a fetus or infant
2. An opening for discharge (medicine)

• in full swing
• in fun
• infundibula
• infundibular
• infundibulate
• infundibuliform
• infundibulum
• in funds
• infuriate
• infuriated
• infuriates
• infuriating
• infuriatingly
• infuriation
• infuriations
• infuscate
• infuse
• infused
• infuser
• infusers
• infuses
• infusibilities
• infusibility
• infusible
• infusing