separatrix

n. [自] 分界线；分隔号

发音

/sɛpəˈɹeɪtɹɪks/

词形变化

separatrices separatrixes 复数 separatrixes separatrices 复数

释义与例句

n.
  1. 1.

    The ⟨L⟩ or pipe ⟨|⟩ mark formerly used to divide integers from decimals.

    历史 媒体 印刷
  2. 2.

    Synonym of decimal point, which replaced such marks.

    废旧 媒体 印刷
  3. 3.

    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.

    媒体 印刷
  4. 4.

    A terminator: a line on a partially-illuminated surface separating the lit and shaded regions.

  5. 5.

    The line between regions having different magnetic fields.

    物理
  6. 6.

    The boundary separating two modes of behavior in a differential equation.

    数学

词汇关系

名词

同义词 5

stroke slash diagonal solidus virgule

上位词 2

punctuation punctuation mark

词源

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.

来源：wiktionary