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separatrix

American  
[sep-uh-rey-triks, sep-uh-rey-] / ˈsɛp əˌreɪ trɪks, ˌsɛp əˈreɪ- /

noun

plural

separatrices, separatrixes

  1. something that divides or separates, as the line between light and dark areas on a partially illuminated surface.

  2. virgule.

  3. Mathematics. one of several symbols for separating components of a number, as a decimal point or comma.

separatrix British  
/ ˈsɛpəˌreɪtrɪks /

noun

  1. another name for solidus

"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

Etymology

Origin of separatrix

1650–60; < New Latin sēparātrīx, Late Latin; separator, -trix

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.