A pacifier (known as a "dummy" in the United Kingdom, Australia and New Zealand and also as a binkie in the US)'s a rubber, plastic, or silicone nipple given to an infant or other young child to suck upon. In its standard appearance it's a teat, mouth shield, and handle. The mouth shield and/or the handle's large enough to avoid the danger of the child choking on it or swallowing it. History There's a long history of parents giving their children items to suck on in order to comfort them. In th… (More on Pacifier)