Webster's Revised Unabridged Dictionary · 1913

Pirouette

Pirouette , noun

[French; of uncertain origin.]

1.
A whirling or turning on the toes in dancing.
2.
(Man.) The whirling about of a horse.

Pirouette , intransitive verb

[French pirouetter.]

To perform a pirouette; to whirl, like a dancer.