pho.tic
adj.（形容词）Of or relating to light.光的，有关光的Penetrated by or receiving light.透光的；感光的，受光的Designating or relating to the layer of a body of water that is penetrated by sufficient sunlight for photosynthesis:透光层的：表明为进行光合作用而被足够的阳光穿透的水体表层的；或与之有关的：例句：the photic zone of the ocean.海洋的透光带
