14-Letter Words Containing: A,R,O,O,N,S,_

• use an apostrophe

• a patient with imaginary symptoms and ailments

• suffering from hypochondria

• a polyhedron whose faces are trapeziums

• The study of the relationship between those quarks that possess the quantum property of color, and exchange gluons; more fully quantum chromodynamics.

• the act of making formal (as by stating formal rules governing classes of expressions)

• abnormal presence of air in the pleural cavity resulting in the collapse of the lung; may be spontaneous (due to injury to the chest) or induced (as a treatment for tuberculosis)

• a piece of harmonized music

• singing in harmony

• (mathematics) the resolution of an expression into factors such that when multiplied together they give the original expression

• A formal gathering where something related to the arts is discussed.

• (by extension) A community social gathering.