sep·a·ra·tion

[sep-uh-rey-shuhn]
noun
1.
an act or instance of separating or the state of being separated.
2.
a place, line, or point of parting.
3.
a gap, hole, rent, or the like.
4.
something that separates or divides.
5.
Law.
a.
cessation of conjugal cohabitation, as by mutual consent.
6.
Aerospace. the time or act of releasing a burned-out stage of a rocket or missile from the remainder.
7.
Photography, separation negative.

Origin:
1375–1425; late Middle English < Latin sēparātiōn- (stem of sēparātiō), equivalent to sēparāt(us) separate + -iōn- -ion

non·sep·a·ra·tion, noun
pre·sep·a·ra·tion, noun
re·sep·a·ra·tion, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To Separation
00:10
Separation is always a great word to know.
So is ort. 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.
a scrap or morsel of food left at a meal.
Collins
World English Dictionary
separation (ˌsɛpəˈreɪʃən) [Click for IPA pronunciation guide]
 
n
1.  the act of separating or state of being separated
2.  the place or line where a separation is made
3.  a gap that separates
4.  family law judicial separation Compare divorce the cessation of cohabitation between a man and wife, either by mutual agreement or under a decree of a court
5.  a.  the act of jettisoning a burnt-out stage of a multistage rocket
 b.  the instant at which such a stage is jettisoned

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

separation
1413, from O.Fr. separation, from L. separationem, n. of action from separare (see separate). Specific sense of "sundering of a married couple" is attested from 1600. Separation of powers first recorded 1788, in "Federalist" (Hamilton), from Fr. séparée de
la puissance (Montesquieu, 1748). Separation anxiety first attested 1943.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
The solution: add more of a delay after the first-stage engine stops firing
  before separation to ensure a clean break.
But it had never been tried for so long and with such absolute physical
  separation.
Psychological impacts of long-term separation anxiety.
Aluminium destruction test for capsule top-cone separation.
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