dominant

Pronunciation: /ˈdɒmɪnənt/

The English word “dominant” has 10 meanings listed here.

noun

The fifth major tone of a musical scale (five major steps above the note in question); thus G is the dominant of C, A of D, and so on.
The triad built on the dominant tone.
Of an allele, that a heterozygote for the allele has the same phenotype as the homozygote.
A species or organism that is dominant.
The dominating partner in sadomasochistic sexual activity.

Ruling; governing; prevailing
Predominant, common, prevalent, of greatest importance.
Of a body part, preferred and used with greater dexterity than the other, as the right hand of a right-handed person or the left hand of a left-handed one.
Designating the follicle which will survive atresia and permit ovulation.
Being the dominant

Borrowed from Middle French dominant.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.