Definition of "biofeedback" [bi•o•feed•back]

• The technique of using monitoring devices to furnish information regarding an autonomic bodily function, such as heart rate or blood pressure, in an attempt to gain some voluntary control over that function. It may be used clinically to treat certain conditions, such as hypertension and migraine headache. (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.

• "Cindi says he was given cognitive therapy and something called biofeedback, which helped, but that psychologically he was a mess."
• "It is the abrupt open-and-shut of the vocal cords that (through a process known as biofeedback) apparently charges the higher harmonics with increasing energy, resulting in separation between up to six simultaneous tones."
• "Boomers themselves, Bond and Austin opened a physical therapy practice based on a technique called biofeedback, which they say helps their clients alleviate the aches and pains of aging."