Also found in: Medical.


n. (used with a sing. verb)
1. The science that deals with the effects of light on molecules, especially the activating effects of light on molecules that are inserted into the body to treat disease.
2. The behavior of a substance or chemical when exposed to light.


(Biology) (functioning as singular) the branch of biology concerned with the effects of light on the actions of plants and animals


(ˌfoʊ toʊ daɪˈnæm ɪks)

n. (used with a sing. v.)
the branch of biology dealing with light and its effects on living organisms.
pho`to•dy•nam′ic, adj.
pho`to•dy•nam′i•cal•ly, adv.


the science or study of light in relation to the movement of plants. — photodynamic, photodynamical, adj.
See also: Plants
the science or study of light in relation to the movement of plants. — photodynamic, photodynamical, adj.
See also: Light
References in periodicals archive ?
Many topics such as Biofuel, Solar Energy, Biotechnology, Nanotechnology, Polymers, Photodynamics, Nanomedicine, Plasma physics, Biophotonics, Tokamak and Accelerator Technology discussed at INSC resulted in development of new research areas, research collaborations and state of art laboratories and institutes in Pakistan.
2008) Nonadiabatic dynamics within the time dependent density functional theory: Ultrafast photodynamics in pyrazine.
Photodynamics of the bacteriochlorophyll-carotenoid system, 2: influence of central metal, solvent and P-carotene on photobleaching of bacteriochlorophyll derivatives.
The word photodynamics means the application of dynamics of photons of light on the biological molecules.
Second and third activities of the Summer College will be on New and Novel Materials for Energy & Environment and on Biophotonics, Photodynamics and Microscopy respectively.
The therapy uses a combination of amino acids and light to create oxygen radicals with photodynamics.
Cramb, 'Near-Infrared Two-Photon Excitation of Protoporphyrin IX: Photodynamics and Photoproduct Generation', in Photochemistry and Photobiology 65: 91-95, 1997.
Photodynamics of nickel porphyrins in noncoordinating solvents: Characterization of dd excited states using transient Raman spectroscopy.
Other efforts involve exploring novel techniques, including the use of photodynamics and ultrasound, for decontaminating ready-to-eat fruits and vegetables.
Hans Bock, Frankfurt University, Germany during 1977-1978 and a team leader at Photodynamics Research Center, Sendai, The Institute of Physical and Chemical Research (RIKEN) during 1990-1998.
Several of the papers analyze emerging hurdles, including ultrahigh pressure, manothermo sonication, photodynamics, modified atmosphere packaging, edible coatings, ethanol, Maillard reaction products and bacteriocins.