Cite
 

Meaning of photodegradable

pho•to•de•grad•a•ble

Pronunciation: (fō"tō-di-grā'du-bul), [key]
— adj.
  1. (of a substance) capable of being broken down by light.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.