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fish-bellied

American  
[fish-bel-eed] / ˈfɪʃˌbɛl id /

adjective

Building Trades, Machinery.
  1. (of a beam or rail) having a convex underside.


Etymology

Origin of fish-bellied

First recorded in 1825–35

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The line was at first laid with fish-bellied rails weighing thirty-five pounds to the yard, calculated only for horse-traffic, or, at most, for engines like the “Rocket,” of very light weight. 

From Lives of the Engineers The Locomotive. George and Robert Stephenson by Smiles, Samuel

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