photopositive Syllabification: (pho·to·pos·i·tive)Pronunciation: /ˌfōtōˈpäzitiv/Definition of photopositive adjective 1 Biology (of an organism) tending to move toward light. 2 Physics (of a substance) exhibiting an increase in electrical conductivity under illumination. photopositive in other Oxford dictionaries Definition of photopositive in the British & World English dictionary
