dominance

1 :  the fact or state of being dominant: such asa sociology :  controlling, prevailing, or powerful position especially in a social hierarchy (see hierarchy 4) male dominance political dominance companies competing for dominance in the market dominance over their rivalsb genetics :  the property of one of a pair of alleles or traits that suppresses expression (see expression 1b(4)) of the other in the heterozygous conditionc ecology :  the influence or control over ecological communities exerted by a dominant (see ²dominant 2b)

2 biology :  functional (see functional 1b) asymmetry between a pair of bodily structures (such as the right and left hands) right brain dominance