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

• riva
• rivage
• rivages
• rival
• rivaled
• rivaless
• rivalesses
• rival-hating
• rivaling
• rivalise
• rivalised
• rivalises
• rivalising
• rivalities
• rivality
• rivalize
• rivalized
• rivalizes
• rivalizing
• rivalled
• rivalless
• rivalling
• rivalries
• rivalrous
• rivalry