14-Letter Words Containing: _,A,H,N,O,P,S,T

• a compound used primarily in veterinary medicine to rid farm animals of internal parasites

• use an apostrophe

• of or relating to or incorporating the methods and theory of psychiatric treatment originated by Sigmund Freud

• a polyhedron whose faces are trapeziums

• 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)

• photosynthetic or plant constituent of plankton; mainly unicellular algae