1) Cooking technique 
Degreasing often called Defatting or fat trimming, is the removal of fatty acids from an object. In culinary science, degreasing is done with the intention of reducing the fat content of a meal. ==Degreasing food== Degreasing is often used by dieters, particularly those following low fat diets to reduce their fat consumption to induce weight loss....
the process of removing greases and oils from sewage, waste, and sludge.
the process of removing greases and oils from sewage, waste, and sludge.
Removal of grease,oil or other lubricant-type materials by immersion in an effective solvent. primarily alkaline cleaners are used,although an organic solvents are useful.