parliamentary

1. (British, historical, railways) Of a class of train which, by an act of parliament, ran both ways along a line, at least once each day, at the rate of one penny per mile.Examples: "The train was moving less fast through the summer night. The swift express had changed into something almost a parliamentary, had stopped three times since Norwich, and now, at long last, was approaching Banton."Britishhistoricalnot-comparable