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separatrix

separatrix

9.9
A mark like a slash that separates related items, often in math
  • noun
  • /ˌsɛpəˈreɪtrɪks/
  • Specialized
translation icon : separatriz
  • Typographers sometimes refer to the “slash” character as a separatrix.

Examples

  • A separatrix can help clarify complex fractions when written horizontally.

  • In older mathematical texts, the separatrix was commonly used instead of a decimal point.

  • The separatrix is essential!

  • Look at the separatrix!

  • In mathematics, a separatrix is often used to divide different types of data in a graph.

  • The separatrix is essential in calculus to show the relationship between variables.

  • When writing formulas, a separatrix can effectively distinguish between multiple elements.

Synonyms

slash
vsseparatrix
20 2.5

A mark written as / that shows choices or parts of information

is used especially in mathematical and typographical contexts rather than casual writing
stroke
vsseparatrix
  • Archaic
11 7.4

A punctuation mark used to separate words or numbers

is used particularly in mathematical or typographical contexts, not only for dates
separator
vsseparatrix
3 3.4

A thing that keeps two areas apart, like a curtain or a mark in text

is a specific written mark used in mathematical and typographical contexts, not general dividing objects
punctuation mark
vsseparatrix
1 1.3

A symbol like a period or comma that separates sentences and shows meaning

is one specific mark used in mathematical and typographical contexts, not the whole category
diagonal
vsseparatrix
1 6.3

A slanted line mark used to separate words or numbers

is mainly used in mathematical or typographical contexts rather than general separation
delimiter
vsseparatrix
  • Specialized
1 5.9

A character or symbol that separates items in text and data files

is used in mathematical or typographical contexts rather than for data separation
virgule
vsseparatrix
  • Specialized
9.1

A punctuation mark that looks like a slash and separates related parts like 1/2 or yes/no

is used especially in mathematical or typographical contexts rather than general text
solidus
vsseparatrix
  • Specialized
9.3

A punctuation mark shaped like a slanted line used to separate words or numbers

is used more in mathematical and typographical contexts than for plain lists

How Strong

period
  • US
96 1.0
colon
7 2.9
semicolon
7 3.7
separatrix
  • Specialized
9.9
comma
23 1.0

Surface Forms

separatrix singular
separatrices plural

Morphology

separatrix = separate (semi-transparent) = separate + trix

The base 'separate' clearly conveys the idea of dividing, but the suffix '-trix' is a learned Latin agentive suffix uncommon to average learners, so the derivation is only partially guessable.

Etymology

Separatrix comes from the Latin separare 'to separate' and the ending -trix that means 'a thing that separates'. So a separatrix is like a 'separator', for example the slash '/' used to divide related items on a line.