Definition A pacifier is an artificial nipple designed for babies to suck on for comfort.Pacifiers, also known as soothers, dummies and artificial teats are as rooted in history as they are in controversy. Pacifier is a quiz for new parents and mothers to help them to learn and choose the right pacifier for their baby.Babies are born wanting to suck. Some even suck their thumb or fingers in the womb. This is a natural behaviour that allows them to feed and grow. It’s also comforting and helps babies settle. If your baby seems to want to suck in between feedings, a pacifier can help. But it should never be used instead of feeding, and it should never be used without the extra comfort and cuddling a parent can provide.