sul·fite 
(sŭlfīt′)
(sŭlfīt′)n.
The divalent anionic group SO3, derived from sulfurous acid, or a compound containing this group.
sul·fitic (-fĭtĭk) adj.
- photophobia
- photophobic
- photophore
- photophosphorylation
- photopia
- photopic
- photoplay
- photopositive
- photoproduct
- photoreaction
- photorealism
- photorealist
- photorealistic
- photoreception
- photoreceptive
- photoreceptor
- photoreconnaissance
- photorefractive
- photoresistor
- photorespiration
- photosensitive
- photosensitivity
- photosensitization
- photosensitize
- photosensitizer