aerotrain

American  

[air-uh-treyn] / ˈɛər əˌtreɪn /

noun

1. an experimental high-speed train that rides on a cushion of air over a concrete guide track in the shape of an inverted T and is propelled by one or more propellers or jet engines.

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Etymology

Origin of aerotrain

First recorded in 1965–70; aero- + train