The American Heritage® Dictionary of the English Language, 4th Edition
n. A system of therapy in which disease is considered the result of abnormal function of the nervous system. The method of treatment usually involves manipulation of the spinal column and other body structures.
n. A system of health care involving manipulation of the spinal column and other body structures, for the purpose of alleviating neural dysfunction.
the GNU version of the Collaborative International Dictionary of English
n. a method of medical treatment that manipulates body structures, especially the spine, in the belief that it restores proper nerve functioning.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a method of treatment that manipulates body structures (especially the spine) to relieve low back pain or even headache or high blood pressure
Word Usage
"Even though there are over 60,000 chiropractors practicing in the US today, and colleges all over the country offer chiropractic certification, we still see some common misconceptions when the term chiropractic is mentioned."