divergence

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divergence

 [di-ver´jens]
a moving apart, or inclination away from a common point. adj., adj divergent.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

di·ver·gence

(dī-vĕr'jens),
1. A moving or spreading apart or in different directions.
2. The spreading of branches of the neuron to form synapses with several other neurons.
[L. di-, apart, + vergo, to incline]
Farlex Partner Medical Dictionary © Farlex 2012

divergence

(dĭ-vûr′jəns, dī-)
n.
1.
a. The act or process of diverging.
b. The state of being divergent.
c. The degree by which things diverge.
2. A departure from a norm; a deviation.
3. Biology The evolutionary tendency or process by which animals or plants that are descended from a common ancestor evolve into different forms when living under different conditions.
4. Physiology A turning of both eyes outward from a common point or of one eye when the other is fixed.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

di·ver·gence

(di-vĕr'jĕns)
1. A moving or spreading apart or in different directions.
2. The spreading of branches of the neuron to form synapses with several other neurons.
[L. di-, apart, + vergo, to incline]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

divergence

1. The act or state of moving off in different directions from a point.
2. The departure from each other of two processes, modes of action or courses of evolution.
3. In genetics, the degree, usually expressed as a percentage, to which two related DNA lengths differ in nucleotide sequences, or two similar proteins differ in amino acid sequence.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

divergence

1. Movement of the eyes turning away from each other. 2. Characteristic of a pencil of light rays, as when emanating from a point source. Syn. negative convergence. See vergence.
divergence excess A high exophoria at distance associated with a much lower exophoria at near. It may occasionally give rise to diplopia in distance vision.
fusional divergence A movement of the eyes away from each other in response to retinal disparity, in order to restore single binocular vision. It occurs most commonly when induced by a base-in prism.
divergence insufficiency A high esophoria at distance associated with esophoria at near. It often gives rise to symptoms of asthenopia in both distance and near vision.
divergence paralysis See divergence paralysis.
vertical divergence Relative vertical movement between the two eyes.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
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