1 Editor-in-Chief, Lymphatic Research and Biology (2002 - Present) 2  Chair, Scientific Advisory Committee, Lymphatic Research Foundation (1999 - Present) 3  Director, Stanford Center for Lymphatic and Venous Disorders, Stanford University (2000 - Present) 4  Chief of Consultative Cardiology, Stanford University (1997 - Present)
A BDSM-style collar that buckles in the back. Detail of collar showing D-rings. In a BDSM context, a collar is a device of any material worn by a person around the neck to indicate their submissive or slave status in a BDSM relationship. A person wearing a collar to symbolize their relationship with another is said to be collared.
The term BDSM is first dated from 1969. The term BDSM was formed by joining the term B&D (bondage and discipline) with S&M (sadomasochism, or sadism and masochism). It is sometimes believed to contain within it the compound D&S (dominance and submission) but this is an example of folk etymology. BDSM is used today (2015) as a catch-all phrase covering a wide range of activities, forms of interpersonal relationships, and distinct subcultures.