Relating to the energy or force exerted by light. ... Origin: photo-+ G. Dynamis, force ... (05 Mar 2000) ... 
Type: Term Pronunciation: fō′tō-dī-nam′ik Definitions: 1. Relating to the energy or force exerted by light.
photodynamic 1. Of or relating to the energy or force exerted by light. 2. Powerful in the light; used particularly for the action exerted by fluorescent substances in the light.