biosensor

1. (biochemistry) Any device that detects, records or transmits physiological data, especially data concerning the presence of chemical compounds (analytes)Examples: "Since the early 1980s, considerable research effort has been devoted to the development of fiber optic (FO) biosensors because of their potential sensitivity, detection speed, and adaptability to a wide variety of assay conditions."

2. (biochemistry) A device that uses biological material (e.g. microorganisms, oligonucleotides, enzymes, antibodies) to detect other biological molecules or chemicals.Examples: "Today's biosensor market is dominated by glucose biosensors, mass-produced enzyme-electrodes for the rapid self-diagnosis of blood glucose levels by diabetes sufferers."