photism /fōˈti-zm/

1. A hallucinatory vision of light
2. A visual sensation that results from the experience of hearing, feeling, tasting, smelling or thinking something

• half-leathers
• half-length
• half-lengths
• half-life
• half-light
• half-lights
• halflin
• halfling
• halflings
• halflins
• half-lives
• half loaf
• half-loaf
• half-loaves
• half-marathon
• half-marathons
• half mast
• half-mast
• half masts
• half measure
• half measures
• half-miler
• half-milers
• half-moon
• half-moons