DictionaryrailStructural bar
noun / verb

rail

RAYL/reɪl/

A long rigid bar forming part of a structure.

A sturdy metal rail beside the steps provides support.

Short length of sturdy metal handrail fixed to two posts beside three simple steps, support/barrier role clear, no whole building.
Etymology

Latin regula named a straight piece of wood—the basic shape behind a rail. The bar used between supports also came to name the metal bars that support and guide railway wheels.

In context

YouCanDo TV21:25
… initially rail sections are welded together and transported through the tunnels sleepers are then positioned beneath providing a stable base followed by the placement of rail Steel on top the track is secured …
MEGA CONSTRUCTION PROJECTS. How Billion-dollar Sea-crossing Bridges Are Built. Machinery & Equipment

More examples

  • The fence has three wooden rails between each pair of posts.
  • Steel rails guide the train's wheels along the track.
  • Workers rail off the edge of the platform for safety.

Forms

rail · rails · railed · railing

railing noun — A barrier made of connected rails.

Similar words

bar
A general term that does not imply a structural role.
beam
A large structural member primarily used to carry weight.