/ ˈdɒmɪnənt; NAmE ˈdɑːm-/ adjective
1.
more important, powerful or noticeable than other things :
The firm has achieved a dominant position in the world market.
The dominant feature of the room was the large fireplace.
2.
( biology ) a dominant gene causes a person to have a particular physical characteristic, for example brown eyes, even if only one of their parents has passed on this gene
—compare recessive
► dom·in·ance / ˈdɒmɪnəns; NAmE ˈdɑː-/ noun [ U ]:
to achieve / assert dominance over sb
political / economic dominance
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WORD ORIGIN
late Middle English : via Old French from Latin dominant- ruling, governing, from the verb dominari , from dominus lord, master.