dominance UK /ˈdɒmɪnəns/US /ˈdɑmɪnəns/ noun5 •The state of being dominant; of prime importance; supremacy.But with the lively Dos Santos pulling the strings behind strikers Pavlyuchenko and Defoe, Spurs controlled the first half without finding the breakthrough their dominance deserved. — 2011 •Being in a position of power, authority or ascendancy over others. •A feeling of power and capacity to act or control another. •of an allele, the degree to which it expresses its phenotype when heterozygous, such as whether it is dominant or recessive. •The superior development of or preference for one side of the body or one of a pair of organs; such as being right-handed. formsdominances