O gauge
[ oh ]
noun
a model-railroad gauge of 1.25 inches (32 millimeters).
Also called Q gauge. a model-railroad gauge of 1.1875 inches (30 millimeters).
Origin of O gauge
1First recorded in 1900–05
Words Nearby O gauge
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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