To homogenise is to blend the components of a mixture into a uniform whole — most familiarly, to treat milk so the cream no longer separates. Forced through a narrow valve at high pressure, milk fat globules are smashed to sub-micron size and stay permanently suspended, giving evenly white, stable milk. The verb extends across food technology: sauces, dressings, and creams are homogenised for smoothness; fruit juices for cloud stability; pharmaceutical emulsions for consistent dosing. High-pressure homogenisers — and their laboratory cousins, sonicators and rotor-stators — do the work by shear, cavitation, and impact. The goal is always the same: a mixture that stays mixed, with texture and appearance uniform from first spoonful to last.