'Photometrical' definitions:
Definition of 'photometrical'
From: WordNet
adjective
Of or relating to photometry [syn: photometric, photometrical]
Definition of 'Photometrical'
From: GCIDE
- Photometric \Pho`to*met"ric\, Photometrical \Pho`to*met"ric*al\, a. [Cf. F. photom['e]trique.] Of or pertaining to photometry, or to a photometer. [1913 Webster] Photometrician