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)

• abortion
• abortional
• abortionist
• abortionists
• abortion pill
• abortion pills
• abortions
• abortive
• abortively
• abortiveness
• abortivenesses
• aborts
• abortuaries
• abortuary
• Abos
• abought
• aboulia
• aboulias
• abound
• abounded
• abounding
• abounds
• about
• about east
• about-face