Definition of "biosensor" [biosensor]

• A device that detects, records, and transmits information regarding a physiological change or process. (noun)
• A device that uses biological materials to monitor the presence of various chemicals in a substance. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "An electronic biosensor is printed on the waistband and measures blood pressure, heart rate and other vital signs through constant contact with the skin."
• "The biosensor is then used for the determination of unknown glucose solutions."
• "This is the hope of engineers at Swansea University where work is being conducted to develop a new kind of biosensor made of graphene grown on a silicon carbide substrate using silicon sublimation."