Eurythmy is a form of expressive movement that was developed in the early 20th century by Rudolf Steiner, the founder of anthroposophy. It involves a combination of rhythmic movements, gestures, and poses, often performed in response to music, speech, or poetry.

Eurythmy practitioners aim to embody the meaning and feeling behind the sounds or words they are expressing through their movements. It's often used in educational, therapeutic, and artistic contexts as a means of promoting harmony, self-expression, and personal development. Some describe it as a kind of "visible speech" or "visible music," where the movements themselves convey the essence of the sounds or words being expressed.