gram-, -gram-, -gram, -grammatic, -grammatical, -grammatically, -gramme, -grammic +
A unit of weight in the metric system from 1797 gramme, borrowing of French gramme, from Late Latin gramma, "small weight"; from Greek gramma, "small weight"; originally, "something written"; from the stem of graphein, "to draw, to write".
1. The record of an earthquake's vibrations and intensity made by a seismograph.
2. A record written by a seismograph in response to ground motions produced by an earthquake, explosion, or other ground-motion sources.
A radiograph produced by sialography (an x-ray of the salivary ducts and glands).
sinus node electrogram
An intracardiac electrogram obtained by placing electrodes near the sinus node or the cardiac muscle fibers located in the posterior wall of the right atrium of the heart which acts as a pacemaker by generating at regular intervals the electric impulses of the heartbeat.
The purpose is to examine the time for impulse conductions from the node to the atrium, one of the upper chambers on either side of the heart, which receive blood from the body and transmit it to the ventricles.
An outline of the shadow of an object filled in with black; a picture painted or produced in this style.
1. A diagrammatic representation of the valences and degrees of attractiveness and acceptance of each individual rated according to the interpersonal interactions between and among members of a group.
2. A diagram in which group interactions are analyzed on the basis of mutual attractions or antipathies between group members.
A record of the development, structures, and functions of the body.
A pictorial representation of intracranial structures that are obtained by echoencephalography.
A graphical representation, produced by a sonograph, of the distribution of sound energy among different frequencies, especially as a function of time.
1. An image of the sun produced using a narrow wavelength band of the radiation it emits.
2. A photograph of the sun made with a spectroheliograph taken in a narrow wavelength band centered on a selected wavelength.
sphygmogram (s) (noun)
, sphygmograms (pl)
A record of the pulse in graphic form.
A tracing produced by a spirograph that provides a continuous tracing of the movements of the lungs during respiration.
1. A radiographic depiction of the spleen, usually after a contrast medium injection.
2. A differential count of the splenic cellular population.
1. A patten of ash remaining after the incineration of a small quantity of tissue. It is used to identify the tissue's mineral content.
2. A photograph or diagram picturing the distribution of mineral ash of a cell or tissue section following microincineration.
A cryptogram or coded message.
A diagram or picture which represents objects in such a way as to give the impression of relief or solidity.
Related "writing" word units: