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

• systemisation
• systemisations
• systemise
• systemised
• systemises
• systemising
• systemization
• systemizations
• systemize
• systemized
• systemizes
• systemizing
• systemless
• system-maker
• system-makers
• system-monger
• system operator
• systems
• systems analyses
• systems analysis
• systems analyst
• systems analysts
• systems engineering
• systems flowchart
• systems flowcharts