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单词 indicatrix
释义

Definition of indicatrix in English:

indicatrix

(also optical indicatrix)
nounPlural indicatrices ˌɪndɪˈkeɪtrɪksɪnˈdɪkətrɪksˈindiˌkātriks
Crystallography
  • An imaginary ellipsoidal surface whose axes represent the refractive indices of a crystal for light following different directions with respect to the crystal axes.

    Example sentencesExamples
    • Other contributions to differential geometry which occur in this work include his invention of the ‘Dupin indicatrix’ which gives an indication of the local behaviour of a surface up to the terms of degree two.

Origin

Late 19th century: modern Latin, feminine of Latin indicator 'something that points out'.

 
 

Definition of indicatrix in US English:

indicatrix

(also optical indicatrix)
nounˈindiˌkātriks
Crystallography
  • An imaginary ellipsoidal surface whose axes represent the refractive indices of a crystal for light following different directions with respect to the crystal axes.

    Example sentencesExamples
    • Other contributions to differential geometry which occur in this work include his invention of the ‘Dupin indicatrix’ which gives an indication of the local behaviour of a surface up to the terms of degree two.

Origin

Late 19th century: modern Latin, feminine of Latin indicator ‘something that points out’.

 
 
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更新时间:2025/1/3 21:05:00