| photocompose |
to set (written material) by the technique of photocomposition. |
| photocomposer |
a machine used for photocomposition. |
| photocomposition |
a process for composing type from the projection of type character images on photographic film, from which the printing plates are made. |
| photoconductive |
displaying a change in electrical conductivity upon absorption of light or other radiation. |
| photocopier |
a machine used to make photographic copies. |
| photocopy |
a photographic copy of a document or other printed material. [2 definitions] |
| photodetector |
an electronic device containing one or more photodiodes that converts photons to electrons. |
| photodiode |
a device consisting of a semiconductor sensitive to light that functions as a photoelectric cell. |
| photoduplicate |
to make a photographic copy or copies of; photocopy. [2 definitions] |
| photodynamics |
(used with a sing. verb) the effect of light on the growth and movement of plants or other organisms. [2 definitions] |
| photoelasticity |
the characteristic of some transparent materials to be measured for strain by observing their double refraction of polarized light when placed under a mechanical stress. |
| photoelectric |
of or relating to the electrical or electronic effects of light or other radiation. |
| photoelectric cell |
an electric cell in which the force of the current changes according to the variations of light or other radiation falling on it; electric eye. |
| photoelectron |
an electron whose emission from a substance is induced by the absorption of electromagnetic radiation such as visible light. |
| photoemission |
the emission of photoelectrons from a surface, esp. a metallic one, induced by the absorption of electromagnetic radiation such as visible light. |
| photoengrave |
to produce or reproduce using the technique of photoengraving. |
| photoengraving |
a printing process by which an image is transferred photographically onto a relief printing plate. [3 definitions] |
| photo finish |
the finish of a race in which the contestants are so close that one or more photographs taken at the moment of crossing the finish line must be examined to determine the winner. [2 definitions] |
| photofinishing |
the act, process, or work of developing film, printing photographs, and the like. |
| photoflash |
a glass bulb attached to a camera that flashes brilliantly for a moment when triggered electrically, to illuminate the subject being photographed; flash bulb. |
| photoflood lamp |
see "flood lamp." |