[dom.i.nance] n (1819) 1: the fact or state of being dominant: as a: dominant position esp. in a social hierarchy b: the property of one of a pair of alleles or traits that suppresses expression of the other in the heterozygous condition c: the influence or control over ecological communities exerted by a dominant
2: functional asymmetry between a pair of bodily structures (as the right and left hands)