res·i·due

[rez-i-doo, -dyoo]
noun
1.
something that remains after a part is removed, disposed of, or used; remainder; rest; remnant.
2.
Chemistry.
a.
residuum ( def 2 ).
b.
an atom or group of atoms considered as a group or part of a molecule.
c.
that part remaining as a solid on a filter paper after a liquid passes through in the filtration procedure.
3.
Law. the part of a testator's estate that remains after the payment of all debts, charges, special devises, and bequests.
4.
Mathematics.
a.
the coefficient of the term with exponent −1 in a Laurent series of a function of a complex variable.
b.
a number related to a given number by a congruence.

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

residual, residue.


1. remains, residuum. See remainder.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To residue
00:10
Residue is always a great word to know.
So is quincunx. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
Collins
World English Dictionary
residue (ˈrɛzɪˌdjuː) [Click for IPA pronunciation guide]
 
n
1.  matter remaining after something has been removed
2.  law what is left of an estate after the discharge of debts and distribution of specific gifts
 
[C14: from Old French residu, from Latin residuus remaining over, from residēre to stay behind, reside]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

residue
mid-14c., from O.Fr. residu, from L. residuum "a remainder," neut. of residuus "remaining, left over," from residere "remain behind" (see residence).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

residue res·i·due (rěz'ĭ-d&oomacr;', -dy&oomacr;')
n.
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.
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Example sentences
Perc residue also remains on clothes after they are cleaned.
He hopes that testing of the knives will reveal residue that could indicate
  what the ancient people ate.
Throughout, in fact, the residue of the war's fraternal horror is the grave
  thematic substratum beneath capers and mystifications.
From the residue of mining to untreated sewage, the world is grappling with a
  host of environmental problems.
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