Merriam-Webster Collegiate Dictionary - strophe

 noun  Etymology: Greek strophe, literally, act of turning, from strephein to turn, twist  Date: 1603  1.  a. a rhythmic system composed of two or more lines repeated as a unit; especially such a unit recurring in a series of strophic units  b. stanza  2.  a. the movement of the classical Greek chorus while turning from one side to the other of the orchestra  b. the part of a Greek choral ode sung during the ~ of the dance