The American Heritage® Dictionary of the English Language, 4th Edition
n. 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.
n. A technique consisting of measuring a person's quantifiable bodily functions, such as blood pressure, heart rate, skin temperature, sweat gland activity, and muscle tension, then conveying the information to the person in real-time.
the GNU version of the Collaborative International Dictionary of English
n. a training program in which a person is given information about physiological processes (heart rate or blood pressure) that is not normally available with the goal of gaining conscious control of them.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a training program in which a person is given information about physiological processes (heart rate or blood pressure) that is not normally available with the goal of gaining conscious control of them
Word Usage
"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."