Two aerialists during a circus performance.
aerialist definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
an acrobat who performs on a trapeze, high wire, etc.
aerialist definition by American Heritage Dictionary
An acrobat who performs in the air, as on a trapeze or tightrope.