Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Wikipedia.
Related to Dominant: dominant gene


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 It might be outdated or ideologically biased.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excitable and capable of maintaining this elevated excitability for a long time—even after the initial stimulus is no longer active.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 ?
Dominant heights were selected by considering 50% of each age for analysis to which it was based on the values of approaching mean.
Males were found to be faster than females while performing the test using both dominant and non-dominant hand with eyes open and blind folded and the values were found to be highly significant.
Engage a target with your dominant eye covered and while holding a bucket of rocks with your non-dominant hand, for instance.
The PT/BW ratios on the dominant and non-dominant sides were also similar when the eccentric IR (p = 0.311) and ER PT/BW ratios (p = 0.244) were assessed.
On the basis of this finding, the authors speculated that batters may be taught to bat 'back-to-front.' More relevant to the discussion of eye dominance, they also speculated that when a reverse stance is adopted, there is an increased likelihood that the 'front' eye (the eye closer to the incoming ball) will be the dominant eye; since most people are right-handed and right-eye dominant, with a reverse stance, the right eye will be closer to the incoming ball when a left-handed stance is adopted.
When a submissive automatically takes something they've been told and they implement it into the relationship/lifestyle, that is impressive to a Dominant and we want to reward them for having done so.
After the intruder was removed and the former dominants and former subordinates were allowed to reestablish their relationships, rank reversals were observed in half of the trials; that is, half of the original dominant animals became new subordinates and half of the original subordinates, new dominants.
Studies have also shown a positive association between a dyskinetic scapula with posterior shoulder tightness and GIRD in the dominant arm of overhead players (17-19, 27, 28).
For the purpose of this article, we will discuss whether or not the AK Party and Turkey have, respectively, evolved into a dominant party and a dominant-party system in light of the AK party's election victories since 2002.
According to the senator, the criteria set by the Comelec in designating NP as the dominant minority party was actually the rules applied in recognizing the 10 'major political parties' as stipulated in Section 26 of Republic Act (RA) No.
" On Thursday, the Comelec resolved to declare the administration PDP-Laban as the dominant party and declared Nacionalista Party, led by re-electionist Sen.