Chiropractic is a type of complementary or alternative medicine that deals with neuromusculoskeletal disorders (conditions affecting the nervous, muscular and skeletal systems). A person who practices chiropractic is called a 'chiropractor.'
The word 'chiropractic' is derived from the Greek words 'cheiros' (hand) and 'praktos' (done by) and so it essentially means 'done by hand.' Chiropractic focuses on the 'chiropractic manipulation/adjustment' in which joints are effectively altered by hand from being in an incorrect position (called a joint subluxation - this causes pain and dysfunction) to the correct anatomical postion (relieving pain and dysfunction). The chiropractic manipulation is mostly painless. Though this is the primary focus of the profession, many chiropractors incorporate additional methods of treatment such as soft tissue therapy, dry needling, ultrasound, spinal traction, etc.
Chiropractors may work in conjunction with other professionals such as biokineticists, orthopaedic surgeons, neurosurgeons, etc. They are primary care doctors and so they may write referrals to other healthcare professionals and hospital.