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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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.