An arabesque is a position in which a ballerina stands on one leg with the other stretched out behind her. The back leg in an arabesque might be just touching the floor or extended straight up in the air.
A ballet dancer in an arabesque position is familiar — many ballets include arabesques or arabesques penchée, when the ballerina's legs are at an angle greater than ninety degrees. Another kind of arabesque is a graceful design originally found in Islamic art and later in European art and design. This kind of arabesque resembles vines and leaves, rendered in metal, ceramic, or stone. The word arabesque comes from the Italian Arabo, or "Arab," used to describe Moorish architecture.