Etymology

indicatrix

I1N1D2I1C3A1T1R1I1X8

Today it means: An ellipsoid whose three axes represent the refractive indices of an anisotropic crystal for light following different directions with respect to the crystal axes Full definition →

Latin indicātrīx
Ask AI about its historyChatGPTClaudePerplexityGoogle AIGrok

The story

  1. Latin · learned borrowing fromindicātrīx
  2. English todayindicatrix

Learned borrowing from Latin indicātrīx. By surface analysis, indicate + -trix.

Etymology from Wiktionary, CC BY-SA 4.0.