separatrix
/sɛpəˈɹeɪtɹɪks/
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
19
Scrabble Score
10
Letters
4
Syllables
8
Unique Chars
Meaning
noun
The proofreader's mark resembling a slash ⟨ / ⟩ or vertical bar ⟨ | ⟩ placed after a note in the margin to indicate that it should replace the item(s) struckthrough in the running text or to separate it from other margin notes.
noun
A terminator: a line on a partially-illuminated surface separating the lit and shaded regions.
noun
The line between regions having different magnetic fields.
noun
The boundary separating two modes of behavior in a differential equation.
Example Sentences
Etymology
Learned borrowing from Latin sēparātrīx, the feminine form of separator (originally owing to an implied līnea (“line”)), from sēparāre (“to divide; to separate”) + -trix (forming female agents). By surface analysis, separate + -trix. First developed as a decimal mark among the medieval Arab mathematicians, whence a shorter variant gave rise to the decimal comma employed by many European countries and their former colonies.
Usage
Inflected Forms
Frequently Paired Words
decimal point[Appendix:Glossary
decimal comma