Allopathic medicine:

A method of treatment that focuses on producing effects that are the opposite of those associated with an illness. If someone had an illness that caused dry skin, for example, allopathic doctors would prescribe moisturizing remedies. The word comes from combining the Greek allos, meaning other, and patheia, meaning suffering.

Chiropractic:

Chiropractic is a health-care profession based on diagnosing, treating and preventing neuromusculoskeletal disorders, and a health-care philosophy centered on the effects those disorders and other lifestyle factors have on a patient's nervous system and overall health.

The word chiropractic means to practice with the hands, as it comes from combining the Greek words cheir, meaning hand, and praktikos, meaning practical or operative. The term refers to chiropractors' hands-on techniques, especially adjustments, which some call manipulations or spinal manipulative therapy. But it could also refer to chiropractors' guiding hands, as they help patients adopt lifestyle habits that promote health and well-being.

Holistic medicine:

A method of treatment that focuses on the entire person and his or her environment, rather than partitioned illnesses or body parts.