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compound number

noun
  1. a quantity expressed in more than one denomination or unit, as one foot six inches or one minute twenty seconds.
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Origin of compound number

First recorded in 1550–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for compound number

compound number

noun
  1. a quantity expressed in two or more different but related units3 hours 10 seconds is a compound number
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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