guardrail
guard|rail /g'ɑːrdreɪl/ (guardrails)
also guard rail
[N-COUNT]
A guardrail is a railing that is placed along the edge of something such as a staircase, path, or boat, so that people can hold onto it or so that they do not fall over the edge.
also guard rail
[N-COUNT]
A guardrail is a railing that is placed along the edge of something such as a staircase, path, or boat, so that people can hold onto it or so that they do not fall over the edge.