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[sep-uh-rey-triks, sep-uh-rey-] /ˈsɛp əˌreɪ trɪks, ˌsɛp əˈreɪ-/
noun, plural separatrices
[sep-uh-rey-tri-seez, -er-uh-trahy-seez] /ˌsɛp əˈreɪ trɪˌsiz, -ər əˈtraɪ siz/ (Show IPA),
something that divides or separates, as the line between light and dark areas on a partially illuminated surface.
Mathematics. one of several symbols for separating components of a number, as a decimal point or comma.
Origin of separatrix
1650-60; < New Latin sēparātrīx, Late Latin; see separator, -trix Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for separatrix
  • Faraday rotation techniques are being developed to measure the magnetic field profiles inside the separatrix.
  • Plasma shape and position, separatrix- wall gaps, gap between separatrixes.
British Dictionary definitions for separatrix


noun (pl) separatrices (ˌsɛpəˈreɪtrɪˌsiːz)
another name for solidus (sense 1)
Word Origin
via New Latin from Late Latin, feminine of sēparātor one that separates
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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Word Origin and History for separatrix

line or hooked line used to separate printed figures, originally with numerals and used where modern texts use a decimal point, also in other specialized senses, from Late Latin (linea) separatrix, feminine agent noun from separare (see separate (v.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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