phon: Meaning and Definition of

phon

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.

phon-

1. var. ofbefore a vowel: phonic.

phon.

1. phonetics.