Bar

[1] A unit of pressure. One bar equals 100 kilopascals (10 ⁵ Pa) or 750.07 mm of mercury at 0°C and latitude 45° or about 14.5 psi.
[2] A rod.
[3] A pivoted bar, parallel to a running rail, which being depressed by the wheels of a train, is capable of holding points or giving information about a train's position
[4] Material of uniform cross-section, which may be cast, rolled, or extruded.
See also angle bar, anti-roll bar, antiroll bar, anti-sway bar, antisag bar, arbitration bar, armature bars, balance bar, boring bar, bulb bar, bull bar, bumper bar, bus-bar, compensating bar, compensator, extension bar, freeway bar, gunwale bar, header bar, hi-way bar, highway bar, hood bar, ladder bars, landau bar, landau bars, levering bar, locking bar clamp, main bar, nerf bar, nudge bar, port bar, push bar, roo bar, side impact bar, sissy bar, spring bar, stabilizer bar, stringer bar, strut bar, sway bar, t-bar, targa bar, test bar, tommy bar, torsion bar, track bar, traction bar, tread bar, wear bars, wheelie bar, wheelie bars, wobble extension bar