PHOTOMECHANICAL
Pho`to*me*chan"ic*al, a.
Defn: Pertaining to, or designating, any photographic process in which a printing surface is obtained without the intervention of hand engraving.
PHOTOMETER
Pho*tom"e*ter, n. Etym: [Photo- + -meter: cf. F. photomètre.]
(Physics)
Defn: An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power.
PHOTOMETRIC; PHOTOMETRICAL
Pho`to*met"ric, Pho`to*met"ric*al, a. Etym: [Cf. F. photométrique.]
Defn: Of or pertaining to photometry, or to a photometer.
PHOTOMETRICIAN
Pho*tom`e*tri"cian, n.
Defn: One engaged in the scientific measurement of light.
PHOTOMETRICIAN; PHOTOMETRIST
Pho*tom`e*tri"cian, Pho*tom"e*trist, n.
Defn: A specialist in photometry.