What does the term "Chiropractic" refer to according to the definition provided?

The term "Chiropractic" refers specifically to the science and practice of correcting misalignments of the vertebral column. This definition emphasizes the fundamental belief in chiropractic care that structural misalignments, particularly in the spine, can adversely affect a person's overall health and function, leading to various health issues.

Chiropractors utilize a variety of techniques to assess and adjust these misalignments, promoting natural healing processes and improving nervous system function. This approach is centered around the body's ability to heal itself when given the right conditions, support, and interventions, particularly in spinal alignment.

The other options mentioned, such as the prescription of drugs, the treatment of infectious diseases, or the practice of surgical procedures, do not align with the core principles of chiropractic care. Chiropractors do not prescribe medications or perform surgeries; instead, they focus on non-invasive methods to restore proper function and alleviate pain and discomfort through spinal adjustments and related therapies.