molecular movement


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movement

 [mo̳v´ment]
1. an act of moving; called also motion.
2. an act of defecation.
active movement movement produced by the person's own muscles.
ameboid movement movement like that of an ameba, accomplished by protrusion of cytoplasm of the cell.
associated movement movement of parts that act together, as the eyes.
brownian movement the peculiar, rapid, oscillatory movement of fine particles suspended in a fluid medium; called also molecular movement.
circus movement the propagation of an impulse again and again through tissue already previously activated by it; the term is usually reserved for the reentry involving an accessory pathway.
molecular movement brownian movement.
passive movement a movement of the body or of the extremities of a patient performed by another person without voluntary motion on the part of the patient.
vermicular m's the wormlike movements of the intestines in peristalsis.

brown·i·an move·ment

erratic, nondirectional, zigzag movement observed by ultramicroscope in certain colloidal solutions and by microscope in suspensions of light particulate matter that results from the jostling or bumping of the larger particles by the molecules in the suspending medium which are regarded as being in continuous motion.
[Robert Brown]

brown·i·an move·ment

(brown'ē-ăn mūv'mĕnt)
Erratic, nondirectional, zigzag movement observed by microscope in suspensions of particles in fluid, resulting from the jostling or bumping of the larger particles by the molecules in the suspending medium.
Synonym(s): molecular movement, pedesis.
[Robert Brown]

Brown,

Robert, English botanist, 1773-1858.
brownian motion - Synonym(s): brownian movement
brownian movement - rapid random motion of small particles in suspension. Synonym(s): brownian motion; brownian-Zsigmondy movement; molecular movement; pedesis
brownian-Zsigmondy movement - Synonym(s): brownian movement
References in periodicals archive ?
(2) Handling Partial Molecular Movements. We demonstrate the usefulness of the proposed approach to the partial molecular movements, where the source and target molecules belong to the same molecule with different states (e.g., a protein in folding process).
Kopelman and his colleagues first came across the phenomenon of reactant segregation in their computer simulations of reactions on confined surfaces, which severely restrict molecular movement. Because a collision between two different molecules leads to the immediate formation of a product, any mixing naturally gets rid of both reactants.
When two chemically compatible polymers are in intimate contact, molecular movement due simply to thermal processes is sufficient to lead to interdiffusion of macromolecular chains.
The main factor that can sharpen the picture, by sensitising MRI to smaller molecular movements, is a substantial increase in magnetic field gradients.
With a background in international economics and Japanese political economy, world renowned scent critic Chandler Burr's understanding of perfume includes intricate molecular movements and fragments of the nature that bring together the world's most famous scents.

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