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[ri-zij-oo-uh m] /rɪˈzɪdʒ u əm/
noun, plural residua
[ri-zij-oo-uh] /rɪˈzɪdʒ u ə/ (Show IPA)
the residue, remainder, or rest of something.
Also, residue. Chemistry. a quantity or body of matter remaining after evaporation, combustion, distillation, etc.
any residual product.
Law. the residue of an estate.
Origin of residuum
1665-75; < Latin; see residual Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for residuum
  • We can observe the residuum of these zones as a dark matter streaks.
  • We can observe the residuum of these zones as a dark matter streaks.
  • Formed in loess and loamy or clayey cherty limestone residuum.
  • Formed in loess or silty material and shale residuum.
  • These soils formed in residuum weathered from cherty limestone.
  • Ordinarily, the products are collected by fractional distillation and solvent extraction of the residuum.
British Dictionary definitions for residuum


noun (pl) -ua (-jʊə)
a more formal word for residue
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
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residuum in Medicine

residuum re·sid·u·um (rĭ-zĭj'ōō-əm)
n. pl. re·sid·u·a (-ōō-ə)
Something remaining after removal of a part; a residue.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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