I know its also a neurological condition but have i got this right - if a poet, Keats for example blurs and mixes different senses together in a poem then that is called synaesthesia and it's fine to say "the poet uses synaesthesia..." or is there a different term that means the same thing? thanks
To be in 'a blue mood' or to have 'a brown voice' are examples of syn�sthesia. The Greek root-words mean 'together sensation'...in other words, it suggests a sensation produced at a different point from the point of stimulation. So yes, it is a kind of blurring of the senses.