Meaning of “dominant” in the English Dictionary

"dominant" in British English

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dominantadjective

uk /ˈdɒm.ɪ.nənt/ us /ˈdɑː.mə.nənt/

C1 more important, strong, or noticeable than anything else of the same type:

a dominant military power
Unemployment will be a dominant issue at the next election.

specialized biology A dominant gene is one that always produces a particular characteristic in a person, plant, or animal:

The gene for brown eyes is dominant.
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More examples

  • Brigitte Bardot was the dominant image of womanhood in French cinema during the 1960s.
  • She was a dominant figure in the international art world.
  • United's 3-0 defeat underlined the fact that they were no longer the dominant side in the league.
  • She was a dominant figure in the movement for constitutional reform.
  • Health and education were the dominant issues of the last general election.
dominance
noun [ U ] uk /ˈdɒm.ɪ.nəns/ us /ˈdɑː.mə.nəns/

C2

Music companies have profited from the dominance of CDs over vinyl records.

(Definition of “dominant” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"dominant" in American English

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dominantadjective

us /ˈdɑm·ə·nənt/

more important, strong, or noticeable than anything else of the same type:

a dominant personality
For years the Democrats were the dominant party in Congress.
dominance
noun [ U ] us /ˈdɑm·ə·nəns/

military dominance

(Definition of “dominant” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"dominant" in Business English

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dominantadjective

uk /ˈdɒmɪnənt/ us

more important, powerful, or successful than other people, companies, etc.:

The question was whether cable or wireless would become dominant.
dominant force/player For a long time Detroit was the dominant force in the American car industry.
dominant market share/position The company is well run, with a dominant market share in many snack-food categories.

(Definition of “dominant” from the Cambridge Business English Dictionary © Cambridge University Press)