What is a root word in medical terminology?

A root word is the core part of a medical term that carries the fundamental meaning, usually referring to a body part, organ, or system. For example, "cardi" refers to the heart, "hepat" refers to the liver, "nephr" refers to the kidney, and "neur" refers to the nerve. Most medical root words come from Greek or Latin. A root word rarely stands alone and is typically combined with prefixes that modify its meaning and suffixes that indicate a condition, procedure, or specialty. Understanding root words allows you to decode unfamiliar medical terms by recognizing their components.