railroad tie

(redirected from Sleeper (rail))
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Noun1.railroad tie - one of the cross braces that support the rails on a railway trackrailroad tie - one of the cross braces that support the rails on a railway track; "the British call a railroad tie a sleeper"
bracing, brace - a structural member used to stiffen a framework
railroad track, railway, railroad - a line of track providing a runway for wheels; "he walked along the railroad track"