The Ohio State University Center for Integrative Health and Wellness concentrates on innovative integrative healthcare, education, research and community engagement. An integrative medicine clinic is part of this continuum.
The National Center for Complementary and Integrative Health defines integrative medicine as a system of care that "combines treatments from conventional medicine and CAM [complementary and alternative medicine] for which there is some high-quality evidence of safety and effectiveness" (https://nccih.nih.gov/health/integrative-health).
Integrative medicine is defined in more detail by The Academic Consortium for Integrative Medicine & Health as a discipline that “reaffirms the importance of the relationship between practitioner and patient, focuses on the whole person, is informed by evidence, and makes use of all appropriate therapeutic and lifestyle approaches, healthcare professionals and disciplines to achieve optimal health and healing.” (http://www.imconsortium.org/about/about-us.cfm).
Parsing the various terms in this broad field is difficult due to its changing nature. CAM is often described as a group of diverse medical and health care systems, practices, and products that are not generally considered part of conventional, i.e. Western, medicine.
When used together with conventional medicine, CAM is considered "complementary medicine." Traditionally, "alternative medicine" refers to CAM used in place of conventional medicine.