photopathic

• a word derived from photopathy.
  photopathy

  noun

  movement of an organism in response to the intensity of light, especially away from the source of light.

More Suggestions

• protopathic
• cytopathic
• homeopathic
• photopathy
• allopathic
• exopathic
• idiopathic
• photophilic
• photophobic