Monorail
(noun)
A railway system in which the train runs on a single rail or beam, typically elevated above the ground.
Origin:
Derived from the greek words "monos" meaning "one" and "rail" meaning "track".
Examples:
- The monorail system is a type of elevated railway.
- Monorails are often used for mass transit in urban areas.
- Monorails are powered by electricity and are often used for short distances.
- Monorail trains are suspended from an overhead track and are guided by a single rail.
- Monorail systems have been developed in several countries around the world.