standard_gauge
1. [ noun ] (transportation) railroad track having the standard width of 56.5 inches
Related terms: railroad_track gauge
Similar spelling:   standard_time
  standard_cell
  standardize
  standardise
  standard_poodle
  standard_candle
  standardizer
  standardized
  standardiser
  standardised
  standard_of_life
  standard_pressure
  stand_guard
  standard-bearer