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brownian movement

   Also found in: Dictionary/thesaurus, Legal, Encyclopedia, Wikipedia 0.01 sec.
movement /move·ment/ (mldbomacv´ment)
1. an act of changing position.

ameboid movement  movement like that of an ameba, accomplished by protrusion of cytoplasm of the cell.
associated movement 
1. movement of parts which act together, as the eyes.
bowel movement  defecation (def. 2).
brownian movement  the random zigzag or dancing movement of minute solute particles suspended in a solvent, due to bombardment by rapidly moving solvent molecules.
rapid eye movement  (REM) the rapid conjugate movement of the eyes that occurs during REM sleep (see under sleep ).
vermicular movement  peristalsis.

Brownian movement (brun-n)
n.
The random movement of microscopic particles suspended in a liquid or gas, caused by collisions with molecules of the surrounding medium. Also called Brownian motion, molecular movement, pedesis.

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.

movement
an act of moving; motion.

movement abnormality
includes involuntary movement, lack of flexion or rigidity, hyper- or hypometric.
active movement
movement produced by the animal'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, such as the eyes.
brownian movement
continuous movement of particles suspended within a liquid.
conjugate movement
two parts moving synchronously in the same direction, e.g. the eyes.
disjunctive movement
two parts moving synchronously but in opposite directions.
involuntary movement
a movement which the animal is unable to prevent.
molecular movement
the peculiar, rapid, oscillatory movement of fine particles suspended in a fluid medium.
passive movement
a movement of the body or of the extremities of an animal performed by a person without voluntary motion on the part of the animal.
purposeful movement
see voluntary movement (below).
vermicular m's
the wormlike movements of the intestines in peristalsis.
voluntary movement
performed out of the will of the animal; an intentional purposeful movement.


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You may know that his Nobel prize was awarded for his elucidation of Brownian movement.
Interweaving anecdotal and technical narrative, he covers the theory of relativity, Brownian movement and its role in convincing skeptics of the physical existence of atoms, and the quantum.
You click on the red one and out scrambles the word 'portfolio'--which you notice is repeated in a row across the bottom before the word zooms out at you and the screen is changed to some monochrome spherical blobs of different sizes doing a dreamy Brownian movement around the screen.
 
 
 
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