leotard(n = noun.artifact) body suit, cat suit, unitard - a tight-fitting garment of stretchy material that covers the body from the shoulders to the thighs (and may have long sleeves or legs reaching down to the ankles); worn by ballet dancers and acrobats for practice or performance;
is a kind of garment

leotard, n. a close-fitting one-piece garment worn by ballet-dancers, acrobats, etc.

Etymology:
J. L{eacute}otard, French trapeze artist d. 1870