• Webster's Revised Unabridged Dictionary
    • n Metol A whitish soluble powder used as a developer in photography. Chemically, it is the sulphate of methyl-p-amino-m-cresol.
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Century Dictionary and Cyclopedia
    • n metol A tradename of methyl-p -amino-m -cresol hydrochlorid, . It is used in photography as a developer.
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Webster's Revised Unabridged Dictionary
G.; trade name, fr. meta-, + kresol, cresol


In literature:

As I crossed the summit of the Lai-metol range I gave a last look at the valley, and saw it no more.
"My Experiences in Manipur and the Naga Hills" by James Johnstone
Metol 1 part or 50 grains Sodium sulphite 10 parts or 1 oz.
"The Barnet Book of Photography" by Various