broad-gauge adjective 2broad gauge noun 1forms 1 adjective2 •Relating to broad gauge or having a broad gauge.Broad-gauge track consists of both bullhead and flat-bottom rails, carried on a variety of sleepers—treated soft wood, hard wood, steel trough—and cast-iron pots and plates. — 1950 •Comprehensive; wide in scope. broad gauge noun1 •A track gauge that is greater than standard gauge. formsbroad gauges
