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BEAM

 
brain electric activity map; trademark name for a map of brainwave activity derived from a computerized enhancement of electroencephalographic records.

beam

 [bēm]
a unidirectional, or approximately unidirectional, emission of electromagnetic radiation or particles.
useful beam in radiology, that part of the primary radiation that is permitted to emerge from the tubehead assembly of an x-ray machine, as limited by the aperture or port and accessory collimating devices.
beam splitter a device that reflects light from the output phosphor of an image intensifier to a photographic recording. Called also image distributor.

beam

(bēm),
1. Any bar the curvature of which changes under load; in dentistry, frequently used instead of "bar."
2. A collimated emission of light or other radiation, such as an x-ray beam.
[O.H.G. Boum]

beam

Drug slang
A regional synonym for cocaine.
 
Radiation oncology
A focused stream of particles or electromagnetic radiation which is focused in a single direction or body region as part of a therapeutic regimen.

BEAM

Abbreviation for:
BCNU, etoposide, cytarabine, melphalan (a chemotherapy regimen)
Biomedical Equipment Assessment & Management (Medspeak-UK)
brain electrical activity mapping

beam

(bēm)
1. Any bar with a curvature that changes under load.
2. dentistry Synonym(s): bar (2) .
3. A collimated emission of light or other radiation, such as an x-ray beam.
[O.H.G. Boum]

beam

(bēm)
1. Any bar the curvature of which changes under load; in dentistry, frequently used instead of "bar."
2. A collimated emission of light or other radiation.
[O.H.G. Boum]
References in periodicals archive ?
6 provides a convenient zoom of the directivity in the spectral plane and a representation of the main cuts (through the central beam) of the radiation pattern.
With the secondary properly aimed, the primary mirror is adjusted until the laser's central beam is reflected back to its exit point on the base of the collimator.
The prototype 77 GHz antenna produces a 3 [degrees] horizontal beam, beams at 4.5 [degrees] on either side of the central beam and a 5 [degrees] beam in the vertical plane.
Superior Beam, Central Body, Wheel Surface, Inferior Beam, Main Inferior Beam, Central Beam, Stiff Beam and Stiff Damp.
Accommodation includes a vestibule, hall with central beam and decorative scrolls, 28- foot-long drawing room plus an open fireplace with white marble mantel and a large dining room with black marble mantel.
) Here is a photograph of a miniature, brand-new Woodshed draped with models in period bell-bottoms and T-shirts, whose supine bodies mimic the contours of the dirt dumped on the shed by Smithson until its central beam cracked (initiating the shed's breakdown).
For a centered secondary, the laser's central beam hits the center of this mirror.
Various gauges are achieved by the width of the central beam, all other elements being unchanged.
Beyond, is a drawing room with another inglenook fireplace, big central beam, windows to three sides and more than 24ft by 18ft of living space.

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