| photomacrograph | <microscopy> Photograph in the magnification range of conventional macrophotography (less than ~40X) taken with a single lens system, often a microscope objective. (05 Aug 1998) |
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| photomacrography | <microscopy> Close-up photography at a limiting magnification of 40X or thereabouts and taken with a single lens system such as a A HREF=photomacrographic lens> Photomacrographic lens or a microscope objective. (05 Aug 1998) |
| photomagnetic | Of or pertaining to photomagnetism. Source: Websters Dictionary (01 Mar 1998) |
| photomagnetism | The branch of science which treats of the relation of magnetism to light. Source: Websters Dictionary (01 Mar 1998) |
| photomania | <psychiatry> Morbid or exaggerated desire for light. Origin: photo-+ G. Mania, frenzy (05 Mar 2000) |
| photomechanical | Pertaining to, or designating, any photographic process in which a printing surface is obtained without the intervention of hand engraving. Source: Websters Dictionary (01 Mar 1998) |
| photometer | <apparatus, physics> An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power. Origin: Photo: cf. F. Photometre. (24 Mar 1998) |
| photometry | The measurement of the intensity of light. (05 Mar 2000) |
| photomicrograph | <microscopy> An image enlarges approximately 40X or higher, produced by light, cf., electron micrograph. (05 Aug 1998) |
| photomicrography | <microscopy> This term should not be reversed into microphotography. A photomicrograph is a photograph of a small object, the image of which is magnified more than approximately 40X by means of a compound microscope. A microphotograph is a small photograph, requiring an enlargement or a lens system in order to view it, the image is minified. (05 Aug 1998) |
| photomultiplier tube | A detector which amplifies a signal (by as much as 106) of electromagnetic radiation by an acceleration of electrons released from a photocathode through a series of dynodes; as each electron strikes a dynode stage, 3 to 4 electrons are liberated and accelerated to the subsequent dynode. (05 Mar 2000) |
| photomyoclonus | Clonic spasms of muscles in response to visual stimuli. Origin: photo-+ G. Mys, muscle, + klonos, confused motion Hereditary photomyoclonus, photomyoclonus associated with diabetes mellitus, deafness, nephropathy, and cerebral dyfunction. (05 Mar 2000) |
| photon | <physics> A quantum unit of light energy. (09 Oct 1997) |
| photon density | The number of counted events recorded in scintigraphy per square centimeter or per square inch of imaged area. Synonym: count density. (05 Mar 2000) |
| photoncia | Any swelling resulting from the intense action of light. Origin: photo-+ G. Onkos, a mass (tumour) (05 Mar 2000) |
Synonyms : Heliotropisms, Phototropisms
| photophosphorylation |
The first stage of the photosynthetic system is the light-dependent reaction, which converts solar energy into chemical energy. Light absorbed by chlorophyll or other photosynthetic pigments is used to drive a transfer of electrons and hydrogen from water (or some other donor molecule) to an acceptor called NADP+, reducing it to the form of NADPH by adding a pair of electrons and a single proton (hydrogen nucleus). ...
출처: en.wikipedia.org/wiki/Photophosphorylation
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| photosensitivity |
Photosensitivity is the amount to which an object reacts upon receiving photons of light. Devices that are photosensitive include the human retina and photographic film. Film is photosensitive because it has a chemical reaction when struck by light. The same process is used in the electronic device known as a photocathode, which is a surface that emits electrons when struck by light. ...
출처: en.wikipedia.org/wiki/Photosensitivity
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| photosensitive |
Photosensitivity is the amount to which an object reacts upon receiving photons of light. Devices that are photosensitive include the human retina and photographic film. Film is photosensitive because it has a chemical reaction when struck by light. The same process is used in the electronic device known as a photocathode, which is a surface that emits electrons when struck by light. ...
출처: en.wikipedia.org/wiki/Photosensitive
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| phototropism |
Phototropism or heliotropism are botanical terms for an organism response to light (in the case of heliotropism, specifically the light from the Sun). These are one of the many plant tropisms or movements in response to extermal stimuli. Growth toward a light source is a positive phototropism, while the reverse is called negative phototropism or skototropism. ...
출처: en.wikipedia.org/wiki/Phototropism
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| phototropic |
Phototropism or heliotropism are botanical terms for an organism response to light (in the case of heliotropism, specifically the light from the Sun). These are one of the many plant tropisms or movements in response to extermal stimuli. Growth toward a light source is a positive phototropism, while the reverse is called negative phototropism or skototropism. ...
출처: en.wikipedia.org/wiki/Phototropic
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| phot | the intensely luminous surface of the sun |
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| phot | (trademark) a duplicating machine that makes quick positive or negative copies directly on the surface of prepared paper |
| phot | a photocopy made on a Photostat machine |
| phot | make a copy by means of a Photostat device |
| phot | (trademark) a duplicating machine that makes quick positive or negative copies directly on the surface of prepared paper |
| phot | synthesis of compounds with the aid of radiant energy (especially in plants) |
| phot | relating to or using or formed by photosynthesis |
| phot | the use of strong light to treat acne or hyperbilirubinemia of the newborn |
| phot | green and purple bacteria |
| phot | green and purple bacteria |
| phot | an orienting response to light |
| phot | producing a voltage when exposed to radiant energy (especially light) |