| photobacterium | A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that are common in the marine environment and on the surfaces and in the intestinal contents of marine animals. Some species are bioluminescent and are found as symbionts in specialised luminous organs of fish. (12 Dec 1998) |
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| Photobacterium harveyi | lucibacterium harveyi |
| Photobacterium phosphoreum | A luminescent species found on dead fish and in sea water; it is the type species of the genus Photobacterium. (05 Mar 2000) |
| photobiology | The branch of biology which deals with the effect of light on living organisms. (12 Dec 1998) |
| photobiotic | <biology> Requiring light to live; incapable of living without light; as, photobiotic plant cells. Origin: Photo- + biotic. Source: Websters Dictionary (01 Mar 1998) |
| photobleach | To lose colour or make white by the action of light; e.g., the use of a laser to bleach a fluorescent dye covalently linked to a macromolecule. (05 Mar 2000) |
| photobleaching | <biochemistry> Light induced change in a chromophore, resulting in the loss of its absorption of light of a particular wavelength. A problem in fluorescence microscopy where prolonged illumination leads to progressive fading of the emitted light because less of the exciting wavelength is being absorbed. (18 Nov 1997) |
| photocatalyst | A substance that helps bring about a light-catalyzed reaction; e.g., chlorophyll. Origin: photo-+ G. Katalysis, dissolution (catalysis) (05 Mar 2000) |
| photoceptor | <cell biology> A specialised cell type in a multicellular organism that is sensitive to light. This definition excludes single celled organisms, but includes noneye receptors, such as snake infra red (heat) detectors or photosensitive pineal gland cells. See: retinal rods, retinal cones. (31 Dec 1997) |
| photochemical | <chemistry> Of or pertaining to chemical action of light, or produced by it; as, the photochemical changes of the visual purple of the retina. Origin: Photo- + chemical. Source: Websters Dictionary (01 Mar 1998) |
| photochemistry | <chemistry> The branch of chemistry which relates to the effect of light in producing chemical changes, as in photography. Origin: Photo- + chemistry. Source: Websters Dictionary (01 Mar 1998) |
| photochemotherapy | Therapy using oral or topical photosensitizing agents with subsequent exposure to light. (12 Dec 1998) |
| photochromatic | Of or pertaining to photochromy; produced by photochromy. Source: Websters Dictionary (01 Mar 1998) |
| photochromic | Of or pertaining to photochromy; produced by photochromy. Source: Websters Dictionary (01 Mar 1998) |
| photochromic lens | A light-sensitive spectacle lens that reduces light transmission in sunlight and increases transmission in reduced light. (05 Mar 2000) |
Synonyms : Therapy, Photodynamic, Photochemotherapies, Photodynamic Therapies, Therapies, Photodynamic
Synonyms : Photofluorographies
Synonyms : Photogrammetries, Stereophotogrammetries
Synonyms : Photographies
Synonyms : Intraoral Photography, Photography, Orthodontic, Dental Photography, Intraoral Photographies, Orthodontic Photography, Photographies, Intraoral
| photosynthesis |
synthesis of compounds with the aid of radiant energy (especially in plants)
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| photochemical |
of or relating to or produced by the effects of light on chemical systems
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| photocoagulator |
surgical instrument containing a laser for use in photocoagulation
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| photoelectric |
of or pertaining to photoelectricity; "the photoelectric effect"
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| phototherapy |
the use of strong light to treat acne or hyperbilirubinemia of the newborn
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| photo | an exchange produced by the chemical action of radiant energy (especially light) |
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| photo | a chemical reaction produced by the action of light |
| photo | branch of chemistry that deals with the chemical action of light |
| photo | surgical procedure that uses an intense laser beam to destroy diseased retinal tissue or to make a scar that will hold the retina in cases of detached retina |
| photo | surgical instrument containing a laser for use in photocoagulation |
| photo | change in the electrical conductivity of a substance as a result of absorbing electromagnetic radiation |
| photo | of or relating to photoconductivity |
| photo | a transducer used to detect and measure light and other radiations |
| photo | change in the electrical conductivity of a substance as a result of absorbing electromagnetic radiation |
| photo | a copier that uses photographic methods of making copies |
| photo | a photographic copy of written or printed or graphic work |
| photo | reproduce by xerography |