Tarantella n. : A rapid and delirious sort of Neapolitan dance in 6-8 time, which moves in whirling triplets; -- so called from a popular notion of its being a remedy against the poisonous bite of the tarantula. Some derive its name from Taranto in Apulia.

Tarantella n. : Music suited to such a dance.

Example:
How do you do a group Tarantella dance at a wedding?

Taxonomy
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Defination from the web:
Tarantella groups a number of different southern Italian couple folk dances characterized by a fast upbeat tempo, usually in 6/8 time ... A performance of the tarantella was central to the plot of Henrik Ibsen's play A Doll's House. ...