13-Letter Words Containing: R,R,O,O

• accumulation of fluid in the pleural cavity (the space between the lungs and the walls of the chest) often resulting from disease of the heart or kidneys

• a polyhedron whose faces are trapeziums

• a complex consisting of an organic base in association with hydrogen chloride

• equipment that enables a sophisticated separation, e.g. gas chromatographic or liquid chromatographic separation.

• A study of the individuals in a group of people within a specific context and their relationships