Clairscient also known as Clairolfactance means to smell a fragrance or odour of a substance which is not physical in nature. For example, you might smell cigarette smoke when you are in a place where it is certain no one is smoking or has smoked or the perfume which a passed person would have worn when on the earth plane.
Note: There are a variety of ways in which a Spirit Guides or a departed spirit can communicate with a medium or psychic. Often these communications are through what is called the "Clair senses." Clair senses is a collective word, meaning that the Guides' communication can utilise any of the following types of psychic sensitivity which co-mingles the physical body's normal five senses.