Definition: In linguistics, "intersessional" is a concept used to describe a period of time during which two or more individuals interact with each other. This can occur between different departments within an organization or among employees who work in different locations. The term was introduced by sociologist Harold P. Stokely and has since become widely recognized as a way to distinguish between professional and personal interactions, particularly those that involve the exchange of ideas, information, and resources between individuals from different backgrounds or organizations.