dominant Meaning in the Cambridge English Dictionary
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Meaning of “dominant” in the English Dictionary

"dominant" in British English

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dominantadjective

uk   /ˈdɒm.ɪ.nənt/  us   /ˈdɑː.mə-/
C1 more ​important, ​strong, or ​noticeable than anything ​else of the same ​type: a dominant ​militarypower Unemployment will be a dominant issue at the next ​election. specialized biology A dominant gene is one that always ​produces a ​particularcharacteristic in a ​person, ​plant, or ​animal: The ​gene for ​browneyes is dominant.
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dominance
noun [U] uk   us   /-nəns/
C2 Music ​companies have profited from the dominance of CDs over ​vinylrecords.
(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   us   /ˈdɒmɪnənt/
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 ​longtime Detroit was the dominant ​force in the American ​carindustry.dominant market share/position The ​company is well ​run, with a dominant ​marketshare in many snack-food ​categories.
(Definition of dominant from the Cambridge Business English Dictionary © Cambridge University Press)
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