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double-nickel

American  
[duhb-uhl-nik-uhl] / ˈdʌb əlˈnɪk əl /

noun

Slang.
  1. the national speed limit of 55 miles per hour as established in 1974 on U.S. highways.


Etymology

Origin of double-nickel

First recorded in 1975–80

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.

USC changed the subject by putting a pick-me-up double nickel on the scoreboard.

From Los Angeles Times • Sep. 6, 2015

Dissolve a few green crystals of "double nickel salts" in water, until the water is a clear green.

From Common Science by Ritchie, John W. (John Woodside)

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