15-Letter Words Containing: T,U,R,P,E,T,H

• former genus of primitive apelike men now Homo erectus

• for therapeutic purposes

• A device, normally in the form of a tube, that uses a photocathode to convert photons into photoelectrons which are then amplified

• excessive nutrients in a lake or other body of water, usually caused by runoff of nutrients (animal waste, fertilizers, sewage) from the land, which causes a dense growth of plant life; the decomposition of the plants depletes the supply of oxygen, leading to the death of animal life