A technique for producing radiographs showing the exact sizes of organs or bones by using a narrow beam of x-rays perpendicular to the plate or film.
1. That part of natural history in which fossils are described.
2. A description of fossils.
1. In medicine, it is used for recording electrical activity of the brain, the heart, and other muscular tissues.
Electrocardiographs and electroencephalographs are examples of the application of this technique.
2. An instrument that registers the movements of an electric current and photographically records the variation.
3. A device for recording oscillations: especially, those of an electric current.
Of, relating to, or using an oscillograph.
1. The study of the records made by an oscillograph.
2. The use of oscillographs.
The study of the records made by an oscillograph (an instrument that records oscillations, usually electrical).
Description of the bones; descriptive osteology.
A written description of the ears.
An apparatus that indicates the estimation of the quantity of ozone in the atmosphere.
A description about the presence or amount of ozone.
Written description of the amount of atmospheric ozone.
An instrument used in palatography or a technique for observing the position of the tongue in relation to the palate during articulation; especially, by placing powder or dye on the palate and then noting the area from which it has been removed by the contact of the tongue with the palate during the production of a speech sound.
1. The recording position of the tongue against the hard palate during speech.
2. The recording of the movements of the palate in speech.
The recording of muscular movements of the palate (the horizontal structure separating the mouth and the nasal cavity or the roof of the mouth).
Related "writing" word units: