Stir-frying is a cooking technique in which small, uniform-size pieces of meat and/or vegetables are cooked quickly over high heat while being constantly stirred. Saute literally means "to jump" and is defined as cooking food in a small amount of fat while stirring and tossing it. The biggest difference between the two techniques is that food is usually cooked at a slightly lower heat when sauteing, so it doesn't require constant stirring.
— Stir-Fry, Etc.: Meals for Life
by The Kitchens of Healthy Choice