[gahrd-reyl] 
| 1. | Also, guardrailing. a protective railing, as along a road or stairway. |
| 2. | Railroads. a rail laid parallel to a track to prevent derailment or to keep derailed rolling stock from leaving the roadbed. |
| guard·rail (gärd'rāl') n. A protective railing, as on a staircase or along a highway. |
