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photosensitise
photosensitive
photosensitize
photosphere
photosynthesis
photosynthesize
photosystem
phototaxis
phototherapy
phototoxic
phototransistor
phototropic
phototropism
phototropy
phototube
phototypeset
phototypesetting
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phototherapy
pho·to·ther·a·py [ ftō thérrəpee ]


noun 
Definition:
 
use of light in disease treatment: the use of light, especially ultraviolet light, in the treatment of disease

pho·to·ther·a·peu·tic [ ftō therə pytik ] adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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