| 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." |
| photogenic |
attractive as a subject for, or appearing attractive in, photographs. [3 definitions] |
| photograph |
a picture made by using a camera that records an image on a light-sensitive surface. [4 definitions] |
| photographer |
a person who takes photographs, esp. as an occupation. |
| photographic |
of or relating to photography. [3 definitions] |
| photography |
the reproduction of an image on a light-sensitive surface. [3 definitions] |
| photogravure |
the photographic process of intaglio engraving. [3 definitions] |
| photo ID |
a card with a person's name and photograph. A photo ID is used to prove that a person is who he says he is. |
| photojournalism |
journalism that primarily uses photographs rather than written text. |
| photolithography |
a technique or process of offset printing in which an image is photographically transferred onto a metal or paper sheet that is then developed and specially treated to resist ink on all but the transferred image. |
| photolysis |
the chemical breakdown or decomposition of matter caused by the absorption of light. |
| photomap |
a map of one or more aerial photographs onto which identifying names and markings have been superimposed. [2 definitions] |