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phon

[fon]
noun
  1. a unit for measuring the apparent loudness of a sound, equal in number for a given sound to the intensity in decibels of a sound having a frequency of 1000 cycles per second when, in the judgment of a group of listeners, the two sounds are of equal loudness.
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Origin of phon

First recorded in 1930–35, phon is from the Greek word phōnḗ voice

phon.

  1. phonetics.
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phon-

  1. variant of phono- before a vowel: phonic.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for phon

Historical Examples

  • Steve might threaten what he liked, but jump Phon would not.

    Gold, Gold, in Cariboo!

    Clive Phillipps-Wolley

  • They say you go gamble, Chance he go gamble, Phon he go gamble too.

    Gold, Gold, in Cariboo!

    Clive Phillipps-Wolley

  • All right, Phon, I'll not leave you behind, even if I have to pack you on my own shoulders.

    Gold, Gold, in Cariboo!

    Clive Phillipps-Wolley

  • Phon had been driven ahead of Steve, as Corbett and Steve had arranged.

    Gold, Gold, in Cariboo!

    Clive Phillipps-Wolley

  • To Steve and Phon this yellow table-land was the region of fairy gold.

    Gold, Gold, in Cariboo!

    Clive Phillipps-Wolley


British Dictionary definitions for phon

phon

noun
  1. a unit of loudness that measures the intensity of a sound by the number of decibels it is above a reference tone having a frequency of 1000 hertz and a root-mean-square sound pressure of 20 × 10 –6 pascal
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Word Origin

C20: via German from Greek phōnē sound, voice

phon.

abbreviation for
  1. Also: phonet phonetics
  2. phonology
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

phon in Medicine

phon-

pref.
  1. Variant ofphono-
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

phon in Science

phon

[fŏn]
  1. A unit of apparent loudness. The loudness of a signal in phons is equal to the intensity in decibels of a 1,000-hertz tone judged to be as loud as the signal being measured.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.