MICELLE

micelle

(noun) an electrically charged particle built up from polymeric molecules or ions and occurring in certain colloidal electrolytic solutions like soaps and detergents

Source: WordNet® 3.1

Etymology

Noun

micelle (plural micelles)

(chemistry) a colloidal aggregate, in a simple geometric form, of a specific number of amphipathic molecules which forms at a well-defined concentration, called the critical micelle concentration

Source: Wiktionary