The American Heritage® Dictionary of the English Language, 4th Edition
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.
n. A skin-tight one-piece garment with long sleeves and no legs, often worn by dancers, acrobats etc.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. 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
Word Usage
"Jeans and a leotard were the order of the day, seeing as she had no intentions of going anywhere but her living room."