One of the nine Muses of ancient Greece. Terpsichore is the Muse of dancing and the dramatic chorus, and later of lyric poetry (and in even later versions, of flute playing). Hence the word terpsichorean, pertaining to dance. She is usually represented seated, and holding a lyre. According to some traditions, she is the mother of the Sirens with the river-god Achelous. She is also occasionally mentioned as the mother of Linus by Apollo.