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1. Genetics
a. (of an allele) producing the same phenotype in the organism irrespective of whether the allele of the same gene is identical or dissimilar
b. (of a character) controlled by such a gene
2. Music of or relating to the fifth degree of a scale
3. Ecology (of a plant or animal species within a community) more prevalent than any other species and determining the appearance and composition of the community
4. Genetics
a. a dominant allele or character
b. an organism having such an allele or character
5. Music
a. the fifth degree of a scale and the second in importance after the tonic
b. a key or chord based on this
6. Ecology a dominant plant or animal in a community
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



(in architecture), the major element in the composition of an ensemble. It is usually a tall building, for example, the main building of Moscow State University on Lenin Hills in Moscow, or the vertical part of one of the buildings, such as the tower and spire of the Admiralty Building in Leningrad. Rising above the surrounding structures, the dominant marks the focal point in the spatial arrangement of the ensemble.



(in music), a harmonic function of a major or minor scale exhibiting a strong tendency toward the tonic. The fifth degree of the scale is the basis of the dominant chord and is itself called the dominant. Chords built on the seventh and third degrees of the scale also fulfill the function of a dominant. The tendency of dominant chords toward the tonic is related to the presence of the leading tone in the chords. The resolution of the dominant into the tonic establishes the tonality with greatest certainty. The tonality whose tonic is the basic dominant is called dominant.



in physiology, a focus of excitation in the central nervous system that temporarily determines the nature of the body’s response to external and internal stimulation.

The dominant nerve center (or group of centers) is highly excitable and capable of maintaining this elevated excitability for a long time—even after the initial stimulus is no longer active. While summing the relatively weak stimuli of other centers, the dominant simultaneously exerts an inhibitory effect on them. Under natural conditions the dominant is formed under the influence of reflex excitation or after certain hormones have acted on the nerve centers. A dominant can be created experimentally by applying a weak electric current or certain drugs directly to the nerve centers. The dominance of some nerve centers over others was first described by N. E. Vvedenskii in 1881.

In elucidating the mechanisms of formation of conditioned reflexes, I. P. Pavlov pointed out that the sustained elevation of excitability of various regions of the cerebral cortex largely determines the dynamics of higher nervous activity both in pathology and in health. A. A. Ukhtomskii formulated the main elements of the theory of the dominant as a general principle of function of nerve centers on the basis of experiments that he and his co-workers performed between 1911 and 1923. The function of a dominant is made apparent in the readiness of an organ to function and maintain its functional state. The dominant in the higher brain centers is the physiological basis of a number of mental phenomena, such as attention.


Ukhtomskii, A. A. Dominanta. Moscow-Leningrad, 1966.
Mekhaniimy dominanty. Leningrad, 1967. (Symposium materials.)


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Overall, all participants constructing meaning from a dominantly instrumental way of knowing more frequently trended toward erring too broad or too narrow.
Speaking on the occasion Ajay Kaul, CEO Jubilant Food Works Limited said, "Although our brand is dominantly present Andhra Pradesh, we are happy to start our journey in Vizag too as another step to reach out to many more cities in the state"
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Globally man-made fibre is the most dominantly consumed textile fibre, the industry body said; pointing out that the ratio between man-made fibres and cotton fibre consumption in India is 41:59 (FY09) against 60:40 globally.
A vent in the front hood is dominantly placed, and appropriately implies the raw power of the engine beneath it.
As an insider-outsider or educator-researcher seeking to understand the complexities of teaching, we interrogated the teachers' beliefs, dilemmas, biasness and prejudices embedded in their reflective narratives on experiences in curriculum work within an education system which is dominantly centralized and highly routinized.
The first goal came from another good passage of play fromthe midfield and ended in a pin-point pass fromCousins to Lloyd who dominantly sent the ball into the back of the net, leaving the keeper still standing on her line.
Boca Raton, FL, June 09, 2010 --( Hun Technology president and founder Ferenc Ledniczky today announced that the company anticipates a hiring blitz, pre dominantly in Boca Raton.
"I played conveniently and dominantly from the start on my own service game, and had many opportunities on his, however, I was less successful.
money supply but was dominantly on account of surge in food prices.
Following treatment of cells with VK(2), there was an increase in gap junctional intercellular communication activity, accompanied by up-regulation of connexin 32 (Cx32), dominantly expressed in normal hepatocyte.