SYNAESTHESIAS
Scrabble letter values: S1Y4N1A1E1S1T1H4E1S1I1A1S1 = 19
Definition
SYNAESTHESIAS is the plural of SYNAESTHESIA.
noun SYNAESTHESIA: a sensation that normally occurs in one sense modality occurs when another modality is stimulated.
Synonyms of SYNAESTHESIA: synesthesia