photometer
— Noun
– English
～ measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source
photometric
— Adjective
– English
～ of or relating to photometry
photometrical
— Adjective
– English
～ of or relating to photometry
photometrically
— Adverb
– English
～ by photometric means; "photometrically measured"
photometrician
— Noun
– English
～ someone who practices photometry
photometrist
— Noun
– English
～ someone who practices photometry
photometry
— Noun
– English
～ measurement of the properties of light (especially luminous intensity)
photomicrograph
— Noun
– English
～ a photograph taken with the help of a microscope
photomontage
— Noun
– English
～ a montage that uses photographic images
photomosaic
— Noun
– English
～ arrangement of aerial photographs forming a composite picture
photon
— Noun
– English
～ a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle
photophobia
— Noun
– English
～ a morbid fear of light
photophobia
— Noun
– English
～ pain in the eye resulting from exposure to bright light (often associated with albinism)
photopigment
— Noun
– English
～ a special pigment found in the rods and cones of the retina
photoplate making
— Noun
– English
～ the process whereby printing surfaces (plates or cylinders) are produced by photographic methods; "photomechanics revolutionized the practice of printing"
photoretinitis
— Noun
– English
～ damage to the retina resulting from exposure of the eye to the sun without adequate protection
photosensitise
— Verb
– English
～ make (an organism or substance) sensitive to the influence of radiant energy and especially light
photosensitive
— Adjective
– English
～ sensitive to visible light; "photographic film is light-sensitive"
photosensitivity
— Noun
– English
～ sensitivity to the action of radiant energy
photosensitize
— Verb
– English
～ make (an organism or substance) sensitive to the influence of radiant energy and especially light