sep·a·ra·trix

[sep-uh-rey-triks, sep-uh-rey-]
noun, plural sep·a·ra·tri·ces [sep-uh-rey-tri-seez, -er-uh-trahy-seez] , sep·a·ra·trix·es.
1.
something that divides or separates, as the line between light and dark areas on a partially illuminated surface.
3.
Mathematics. one of several symbols for separating components of a number, as a decimal point or comma.

Origin:
1650–60; < Neo-Latin sēparātrīx, Late Latin; see separator, -trix

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World English Dictionary
separatrix (ˈsɛpəˌreɪtrɪks) [Click for IPA pronunciation guide]
 
n , pl separatrices
another name for solidus
 
[via New Latin from Late Latin, feminine of sēparātor one that separates]

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Separatrix is always a great word to know.
So is analysis. Does it mean:
a number or quantity placed before and multiplying another quantity, such as 3 in the expression 3x
a system of calculation based on the properties of numbers; the discussion of a problem by algebra consisting of calculus and its higher developments
Example sentences
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.
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