the fact of experiencing some things in a different way from most other people, for example experiencing colours as sounds, experiencing shapes as tastes, or feeling something in one part of the body when a different part is stimulated 联觉（对一种感官的刺激作用触发另一种感官知觉） Word Originlate 19th cent.: modern Latin, from syn- ‘with’, on the pattern of anaesthesia.