Webster's Revised Unabridged Dictionary · 1913

Tarantism

Tarantism , noun

[Italian tarantismo: compare French tarentisme. See Tarantula.]

(Medicine) A nervous affection producing melancholy, stupor, and an uncontrollable desire to dance. It was supposed to be produced by the bite of the tarantula, and considered to be incapable of cure except by protracted dancing to appropriate music.