\Dom"i*nant\, a. [L. dominans, -antis, p. pr. of
dominari: cf. F. dominant. See {Dominate}.]
Ruling; governing; prevailing; controlling; predominant; as,
the dominant party, church, spirit, power.
      The member of a dominant race is, in his dealings with
      the subject race, seldom indeed fraudulent, . . . but
      imperious, insolent, and cruel.          --Macaulay.
{Dominant estate} or {tenement} (Law), the estate to which a
   servitude or easement is due from another estate, the
   estate over which the servitude extends being called the
   servient estate or tenement. --Bouvier. --Wharton's Law
   Dict.
{Dominant owner} (Law), one who owns lands on which there is
   an easement owned by another.
Syn: Governing; ruling; controlling; prevailing; predominant;
     ascendant.

\Dom"i*nant\, n. (Mus.)
The fifth tone of the scale; thus G is the dominant of C, A
of D, and so on.
{Dominant chord} (Mus.), the chord based upon the dominant.