Below is an alphabetical list of words found in natural health in order to help you understand how the body works and how to get healthy.
Enzymes: any of various proteins, as pepsin, originating from living cells and capable of producing certain chemical changes in organic substances by catalytic action, as in digestion. Mine: They are the spark of life when the right situations are present. Enzymes are present in live food waiting to spark life in our bodies.
These definitions come from Dictionary.com a great resource to use for everything.
Other explanations are found at Wikipedia.com as well.