photopositive[fōt′ō päz′ə tiv]
photopositive definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Biol. responding positively to light, as a moth does
photopositive definition by American Heritage Dictionary
Drawn to light; exhibiting a positive phototactic or phototropic response.