[ oh-les-truh ]
/ oʊˈlɛs trə /
a synthetic oil used as a substitute for dietary fat: not digested or absorbed by the human body.
Origin of olestra
1990–95; ol- (< Latin oleum oil) + -estra, alteration of (poly)ester
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019