Nicotinist is a relatively uncommon word referring to a person addicted to or habitually using tobacco. Some synonyms for nicotinist include smoker, tobacco user, cigarette addict, nicotine addict or tobacco snuffer. The term is used to describe individuals who are physically and/or mentally dependent on nicotine, which is found in tobacco products. Nicotine addiction can lead to a variety of health problems such as heart disease, lung disease, and cancer. While there are many cessation programs available to those looking to quit smoking or using tobacco, it can be a difficult journey for those who have become a nicotinist.