from The American HeritageĀ® Dictionary of the English Language, 4th Edition

  • n. An artificial ridge set crosswise into the surface of a street, parking lot, or driveway to make the operators of vehicles decrease speed.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A traffic calming measure, consisting of a transverse ridge in the road, to limit the speed of vehicles.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a hindrance to speeding created by a crosswise ridge in the surface of a roadway


Sorry, no etymologies found.


  • On Punctuation Highway, the writer-as-speaker is a dasher, only half-braking at every stop sign; the writer-as-writer measures every pause, uses a comma for the speed bump and a semicolon to proceed with caution at the balancing of closely related complete thoughts, as in this sentence.

    The Right Word in the Right Place at the Right Time


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