sucrose polyester

[pŏlē-ĕs′tər]
n.
  1. A complex synthetic compound of sucrose and fatty acids that the body is unable to digest or absorb, produced commercially as a partial substitute for fats in cooking oils, shortening, butter, and other high-calorie or high-cholesterol foods.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.