phon

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phon

(fōn),
A unit of loudness of sound.
Farlex Partner Medical Dictionary © Farlex 2012

phon

(fŏn)
n.
A unit of apparent loudness, equal in number to the intensity in decibels of a 1,000-hertz tone perceived to be as loud as the sound being measured.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

phon

(fōn)
A unit of loudness of sound.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

phon

(fon) [Gr. phönē, voice, sound]
A unit of measure of perceived loudness.
Medical Dictionary, © 2009 Farlex and Partners