photic /fōˈtik/

1. Of light
2. Light-giving
3. Sensitive to light
4. Accessible to light (as eg the uppermost layer of sea)

phōtˈics singular noun

Optics

• travelling rugs
• travellings
• travelling-wave tube
• travelling-wave tubes
• travelog
• travelogs
• travelogue
• travelogues
• travels
• travel-sick
• travel sickness
• travel-soiled
• travel-stained
• travel-tainted
• traversable
• traversal
• traversals
• traverse
• traversed
• traverser
• traversers
• traverses
• traversing
• traversing bridge
• traversing bridges