photometrical

from WordNet (r) 3.0 (2006)

photometrical
    adj 1: of or relating to photometry [syn: {photometric},
           {photometrical}]

from The Collaborative International Dictionary of English v.0.48

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