high fidelity(redirected from Hi fi)
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a. the reproduction of sound using electronic equipment that gives faithful reproduction with little or no distortion
b. (as modifier): a high-fidelity amplifier
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
high fidelity[¦hī fi′del·əd·ē]
Audio reproduction that closely approximates the sound of the original performance. Also known as hi-fi.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.