PHOTOMETRY
Pho*tom"e*try, n. Etym: [Cf. F. photométrie.]
Defn: That branch of science which treats of the measurement of the intensity of light.
PHOTOMEZZOTYPE
Pho`to*mez"zo*type, n. [Photo-+ It. mezzo middle, half + -type.]
Defn: A photomechanical process similar to collotype.
PHOTOMICROGRAPH
Pho`to*mi"cro*graph, n. Etym: [Photo- + micro + -graph.]
1. An enlarged or macroscopic photograph of a microscopic object. See Microphotograph.
2. A microscopically small photograph of an object.
PHOTOMICROGRAPHY
Pho`to*mi*crog"ra*phy, n.
Defn: The art of producing photomicrographs.
PHOTONEPHOGRAPH Pho`to*neph"o*graph (-nef"o*graf), n. [Photo- + Gr. ne`fos a cloud + -graph.] (Meteor.)