Phon vs. Bel

Phon and Bel Definitions
Phon
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.
Bel
Ten decibels.
Phon
(acoustics) A unit of apparent loudness, equal in number to the intensity in decibels of a 1,000-hertz tone judged to be as loud as the sound being measured.
Bel
A measure of relative power, defined as log10(P 1/P 2), where P1 and P2 are the measured and reference power respectively.
Phon
A unit of subjective loudness
Bel
The Babylonian name of the god known among the Hebrews as Baal. See Baal.
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Bel
A thorny rutaceous tree (Ægle marmelos) of India, and its aromatic, orange-like fruit; - called also Bengal quince, golden apple, wood apple. The fruit is used medicinally, and the rind yields a perfume and a yellow dye.
Bel
A unit of sound intensity equal to ten decibels.
Bel
A logarithmic unit of sound intensity equal to 10 decibels
Bel
Babylonian god of the earth; one of the supreme triad including Anu and Ea; earlier identified with En-lil