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See more synonyms for speedo on Thesaurus.com
noun, plural speed·os. Informal.
  1. speedometer.
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Origin of speedo

1950–55; by shortening; cf. -o
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for speedo


noun plural speedos
  1. an informal name for speedometer, (Austral) odometer
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for speedo


trademark name of a brand of swimwear, 1928, originally made by McRae Hosiery Manufacturers, Australia. From speed.

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Online Etymology Dictionary, © 2010 Douglas Harper