Where does “astrophotometrical” come from?

astrophotometrical (English) comes from English photometrical — Synonym of photometric.

astrophotometrical (English): Relating to astrophotometry

Definitions

  1. Relating to astrophotometry

Ancestry of “astrophotometrical”, step by step

astrophotometrical traces back through two separate lines of ancestry.

via English photometrical

StepLanguageWordMeaning
1EnglishphotometricalSynonym of photometric

via English astro

StepLanguageWordMeaning
1Englishastroastroturf
Every word from English photometrical