Glossary

analyte - a chemical or biological substance that is the subject of analysis

analyte extraction - removing a chemical or biological substance from the body for analysis

biosensor - a device that monitors and transmits information about a life process such as analytes

continuous glucose monitor (CGM) - realtime measurement of glucose that provides frequent updates and glucose trends over time

epidermis - the outer nonsensitive and nonvascular layer of the skin

glucose - a simple sugar, a source of energy for cells

insulin - a hormone that is essential for the metabolism of carbohydrates and the regulation of glucose levels in the blood

interstitial fluid - a solution that bathes and surrounds the cells; includes glucose and other analytes

lidocaine - a local anesthetic

skin permeation - the treatment of skin to allow transport of a substance such as drugs or analytes to flow more easily through the skin

stratum corneum - the outer part of the epidermis consisting chiefly of layers of dead cells

transdermal - through the skin