indicatrix

noun in·dica·trix \¦ində̇¦kā‧triks, ə̇nˈdikə‧(ˌ)t-\

Definition of indicatrix

plural

-es

  1. :  an ellipsoid whose axes are proportional to the principal refractive indices of a crystal and from which various optical properties of the crystal may be deduced

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Origin and Etymology of indicatrix

New Latin, feminine of Late Latin indicator — more at -trix


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capable of being understood in two ways

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