le·o·tard 
(lēə-tärd′)
(lēə-tärd′)n.
A snugly fitting, stretchable one-piece garment with or without sleeves that covers the torso, worn especially by dancers, gymnasts, acrobats, and those engaging in exercise workouts.
[After Jules Léotard (1830-1870), French aerialist.]
leo·tard′ed adj.
leotard