half step 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.
- Mil. a short marching step of fifteen inches (in double time, eighteen inches)
- Music semitone
half step definition by American Heritage Dictionary
- Music See semitone.
- A marching step of 15 inches (38 centimeters) at quick time and 18 inches (46 centimeters) at double time.