13-Letter Words Containing A,E,G,H,M,N,O,P

• a rotary duplicator that uses a stencil through which ink is pressed (trade mark Roneo)

• print copies from (a prepared stencil) using a mimeograph

• a graphical record of electrical activity of the brain; produced by an electroencephalograph

• an X ray of the brain made by replacing spinal fluid with a gas (usually oxygen) to improve contrast

• A camera that could develop its own film and served as its own projector.

• To employ the techniques of cinematography.

• a scientific instrument that registers magnetic variations (especially variations of the earth's magnetic field)

• the magnetic field of a planet; the volume around the planet in which charged particles are subject more to the planet's magnetic field than to the solar magnetic field

• a montage that uses photographic images