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Related to guardrail: guardrail system
A protective railing, as on a staircase or along a highway.
1. (Building) a railing at the side of a staircase, road, etc, as a safety barrier
2. (Railways) railways Also called (Brit): checkrail a short metal rail fitted to the inside of the main rail to provide additional support in keeping a train's wheels on the track
a protective railing, as along a road or stairway.