grapho-, graph-, -graph, -graphy, -grapher, -graphia +

1. Spirit-writing, i.e. writing alleged to be done directly by a disembodied spirit, without the hand of a medium or any material instrument.
2. A description of supposed spiritual beings, or of beliefs about them; the descriptive part of pneumatology.

A radiographic contrast study of the pulmonary blood vessels.

Radiography of a joint after injection of air and usually also a water-soluble contrast medium.

Generic term for any device that records respiratory (breathing) excursions from movements on the body surface; e.g., an impedance pneumograph, which applies the principles of impedance plethysmography (measuring and recording changes in volume) to the chest.

1. A description of the lungs.
2. The recording of respiratory (breathing) movements, as with a pneumograph.
3. The radiography of tissues into which air or oxygen has been introduced.

A description of the lungs.

An apparatus for recording the rate of air flow during breathing. Also shortened to pneumotach.

A device for taking an outline of the foot and an imprint of the sole.

An early name for lithography as applied to the production of numerous copies of autographs or original drawings.

The process or technique of recording movements during sleep.

Also known as a lie detector, it is an electro-mechanical instrument used to determine whether an examinee is truthfully answering questions.

It simultaneously measures and records certain physiological changes in the human body which it is believed are involuntarily caused by an examinee’s conscious attempt to deceive an interrogator.

1. An apparatus, on the principle of the pantograph, for producing two or more identical drawings or writings simultaneously.
2. An instrument for obtaining tracings of movements in various parts of the body; a myograph.
3. An instrument for recording changes in respiration, blood pressure, galvanic skin response, and other physiological changes while the person is questioned about some matter or asked to give associations to relevant and irrelevant words; the physiological changes are presumed to be indicators of emotional reactions, and thus whether the person is telling the truth.
4. In cryptography, a group of two or more letters.
5. In phonetics, a group of three or more letters expressing a simple sound of speech.

The recorded results of polysomnography or the recordings during sleep of multiple physiological variables.

1. Continuous measurement and recording of relevant normal and abnormal physiological activity during sleep.
2. The polygraphic recording during sleep of multiple physiologic variables, both directly and indirectly related to the state and stages of sleep, to assess possible biological causes of sleep disorders.

Usually, respiration, oxygen saturation, body position, and other factors are also measured during polysomnography.

1. An instrument for estimating and recording sensitiveness to pain.
2. An instrument for recording graphically the progressive fatigue of a contracting muscle.