Langimage
English

astrophotometrical

|as-tro-pho-to-met-ri-cal|

C2

🇺🇸

/ˌæs.troʊ.foʊtəˈmɛtrɪkəl/

🇬🇧

/ˌæs.trəʊ.fəʊtəˈmɛtrɪkəl/

measuring starlight

Etymology
Etymology Information

'astrophotometrical' originates from Modern English, specifically the word 'astrophotometry' plus the adjectival suffix '-ical', where 'astro-' (from Greek 'astron') meant 'star' and 'photometry' derives from Greek 'phōs/phot-' meaning 'light' and 'metron' meaning 'measure'.

Historical Evolution

'astrophotometrical' changed from the Modern English noun 'astrophotometry' (itself formed from 'astro-' + 'photometry') and the adjective-forming suffix '-ical', eventually becoming the modern English adjective 'astrophotometrical'.

Meaning Changes

Initially, the root referred specifically to the 'measurement of light from celestial objects'; over time the derived adjective came to mean 'relating to or using astrophotometry' in descriptions of methods, data, or results.

Meanings by Part of Speech

Adjective 1

relating to astrophotometry — the measurement of the brightness (light intensity) of astronomical objects.

The research team published astrophotometrical data showing the variability of the target star.

Synonyms

astrophotometricphotometric (in an astronomical context)

Adjective 2

describing measurements, techniques, or results obtained by astrophotometric methods (i.e., measured photometrically in an astronomical context).

We used astrophotometrical calibration to convert detector counts into standard magnitudes.

Synonyms

astrophotometricphotometrically determined

Last updated: 2025/11/08 19:34