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

• tachistes
• tachistoscope
• tachistoscopes
• tachistoscopic
• tachistoscopically
• tachists
• tacho
• tacho-
• tachogram
• tachograms
• tachograph
• tachographs
• tachometer
• tachometers
• tachometric
• tachometrical
• tachometries
• tachometry
• tachos
• tachy-
• tachycardia
• tachycardias
• tachygraph
• tachygrapher
• tachygraphers