| photograph | A picture or likeness obtained by photography. Origin: Photo- + -graph. To take a picture or likeness of by means of photography; as, to photograph a view; to photograph a group. "He makes his pen drawing on white paper, and they are afterwards photographed on wood." (Hamerton) Also used figuratively. "He is photographed on my mind." (Lady D. Hardy) Origin: Photographed; Photographing. To practice photography; to take photographs. Source: Websters Dictionary (01 Mar 1998) |
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| photographer | One who practices, or is skilled in, photography. Source: Websters Dictionary (01 Mar 1998) |
| photographic | Of or pertaining to photography; obtained by photography; used ib photography; as a photographic picture; a photographic camera. Photograph"ically, Photographic printing, the process of obtaining pictures, as on chemically prepared paper, from photographic negatives, by exposure to light. Origin: Cf. F. Photographique. Source: Websters Dictionary (01 Mar 1998) |
| photographical | Of or pertaining to photography; obtained by photography; used ib photography; as a photographic picture; a photographic camera. Photograph"ically, Photographic printing, the process of obtaining pictures, as on chemically prepared paper, from photographic negatives, by exposure to light. Origin: Cf. F. Photographique. Source: Websters Dictionary (01 Mar 1998) |
| photographist | A photographer. Source: Websters Dictionary (01 Mar 1998) |
| photographometer | <apparatus, photography> An instrument for determining the sensibility of the plates employed in photographic processes to luminous rays. (24 Mar 1998) |
| photography | 1. The science which relates to the action of light on sensitive bodies in the production of pictures, the fixation of images, and the like. 2. The art or process of producing pictures by this action of light. The well-focused optical image is thrown on a surface of metal, glass, paper, or other suitable substance, coated with collodion or gelatin, and sensitized with the chlorides, bromides, or iodides of silver, or other salts sensitive to light. The exposed plate is then treated with reducing agents, as pyrogallic acid, ferrous sulphate, etc, to develop the latent image. The image is then fixed by washing off the excess of unchanged sensitive salt with sodium hyposulphite (thiosulphate) or other suitable reagents. Origin: Photo-: cf. F. Photographie. Source: Websters Dictionary (01 Mar 1998) |
| photoheliograph | <physics> A modified kind of telescope adapted to taking photographs of the sun. Origin: Photo- + heliograph. Source: Websters Dictionary (01 Mar 1998) |
| photohemotachometer | An appliance for recording photographically the rapidity of the blood current. Origin: photo-+ G. Haima, blood, + tachos, speed, + metron, measure (05 Mar 2000) |
| photoheterotroph | An organism that depends on light for most of its energy and principally on organic compounds for its carbon. Compare: photoautotroph, photolithotroph, phototroph. Origin: photo-+ G. Heteros, other, + trophe, nourishment (05 Mar 2000) |
| photoheterotrophic | Pertaining to a photoheterotroph. (05 Mar 2000) |
| photohetrotroph | <biology> An organism using light as a source of energy and organic materials as carbon source. (09 Oct 1997) |
| photoinactivation | Inactivation by light; e.g., as in the treatment of herpes simplex by local application of a photoactive dye followed by exposure to a fluorescent lamp. (05 Mar 2000) |
| photokeratoscope | <instrument> A keratoscope fitted with a still film camera. (05 Mar 2000) |
| photokinesis | Alteration of random movements of motile organisms in response to light. Origin: photo-+ G. Kinesis, movement (05 Mar 2000) |
Synonyms :
Synonyms : Chronic Actinic Dermatitis, Photosensitization, Actinic Dermatitides, Actinic Dermatitides, Chronic, Actinic Dermatitis, Actinic Dermatitis, Chronic, Actinic Reticuloid Syndromes, Chronic Actinic Dermatitides, Dermatitides, Actinic, Dermatitis, Chronic Actinic
Synonyms : Agents, Photosensitizing
Synonyms : Dark Reactions of Photosynthesis, Calvin Benson Bassham Cycle, Calvin Benson Cycle, Cycle, Calvin, Cycle, Calvin-Benson, Cycle, Calvin-Benson-Bassham, Photosynthesis Dark Reaction, Photosynthesis Dark Reactions, Photosynthetic Carbon Fixation
Synonyms : Bacterial Photosynthetic Reaction Center, Photochemical Reaction Center, Bacterial, Photochemical Reaction Center, Plant, Photoreceptors, Plant, Photosynthetic Complexes, Photosynthetic Pigment-Protein Complexes, Bacterial, Photosynthetic Reaction Centers
| photometer |
measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source light meter: photographic equipment that measures the intensity of light
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| photometry |
measurement of the properties of light (especially luminous intensity)
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| photomicrograph |
a photograph taken with the help of a microscope
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| photon |
a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle
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| photochemical reaction |
a chemical reaction produced by the action of light
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| phot | the occupation of taking and printing photographs or making movies |
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| phot | the act of taking and printing photographs |
| phot | the process of producing images of objects on photosensitive surfaces |
| phot | using photography to produce a plate for printing |
| phot | an intaglio print produced by gravure |
| phot | printing from an intaglio plate prepared by photographic methods |
| phot | journalism that presents a story primarily through the use of pictures |
| phot | a lithograph produced by photographically produced plates |
| phot | a planographic printing process using plates made from a photographic image |
| phot | of or relating to or involving various methods of using photography the make plates for printing |
| phot | photographic equipment that measures the intensity of light |
| phot | measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source |