synaesthesia
/ˌsɪnəsˈθiʒə/
noun
- A condition in which one type of stimulation (e.g., hearing a sound) causes a sensation in another sense (e.g., seeing a color).
- Scientists study synaesthesia to understand how the brain connects senses.
- Her synaesthesia makes her associate numbers with specific colors.
- People with synaesthesia might see colors when they hear music.