Sentence:  ( 3 ) For anionics , these <WSD>micelles</WSD> appear to be roughly spherical assemblages in which the hydrocarbon tails come together so that the polar groups ( the ionized ends ) face outward towards the aqueous continuous phase . 
Meaning of the word marked with <WSD> tags:  an electrically charged particle built up from polymeric molecules or ions and occurring in certain colloidal electrolytic solutions like soaps and detergents