phosphene /fosˈfēn/

1. Light seen when the eyeball is pressed
2. A luminous pattern seen when the brain is stimulated electrically

• washhand basins
• washhand stand
• washhand stands
• washhouse
• washhouses
• washier
• washiest
• wash-in
• washiness
• washinesses
• washing
• washing-blue
• washing-board
• washing-bottle
• washing-day
• washing-house
• washing line
• washing lines
• washing liquid
• washing machine
• washing machines
• washing powder
• washing powders
• washings
• washing-soda