rond de jambe 
(rôɴ də zhäɴb)
(rôɴ də zhäɴb)n. pl. ronds de jambe (rôɴ)
The semicircular movement of one leg on the floor, used especially as a ballet exercise.
[French : rond, a round, a circle (from rond, round, from Old French; see ROUND) + de, of + jambe, leg (from Old French; see JAMB).]