Definition of "safety rail" []

• A railing placed alongside a stairway or road for safety (noun)

WordNet. Princeton University. 2010.

• "Seconds later, before the Engineering doors could close, the Cardassian vole gripped the edge of a second-level safety rail with its claws, then vaulted to engineering’s upper deck and slipped through the narrow gap between two heavily shielded quantum-wave decouplers, both aglow with flickering status lights."