[ rez-i-doo, -dyoo ]
/ ˈrɛz ɪˌdu, -ˌdyu /


something that remains after a part is removed, disposed of, or used; remainder; rest; remnant.
  1. residuum(def 2).
  2. an atom or group of atoms considered as a group or part of a molecule.
  3. that part remaining as a solid on a filter paper after a liquid passes through in the filtration procedure.
Law. the part of a testator's estate that remains after the payment of all debts, charges, special devises, and bequests.
  1. the coefficient of the term with exponent −1 in a Laurent series of a function of a complex variable.
  2. a number related to a given number by a congruence.

Origin of residue

1300–50; Middle English < Middle French residu < Latin residuum what is left over; see residual

Can be confused

residual residue Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for residue

British Dictionary definitions for residue


/ (ˈrɛzɪˌdjuː) /


matter remaining after something has been removed
law what is left of an estate after the discharge of debts and distribution of specific gifts

Word Origin for residue

C14: from Old French residu, from Latin residuus remaining over, from residēre to stay behind, reside
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

Medicine definitions for residue


[ rĕzĭ-dōō′ ]


The remainder of something after removal of parts or a part.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.