a. 统治的, 占优势的

[法] 统治的, 占优势的, 流行的; 复准, 回让财产给原主

[ adj ]
exercising power or authority
<adj.all>

Regnant \Reg"nant\ (-nant), a. [L. regnans, -antis, p. pr. of
regnare to reign: cf. F r['e]gnant. See {Reign}.]
1. Exercising regal authority; reigning; as, a queen regnant.

2. Having the chief power; ruling; predominant; prevalent.
``A traitor to the vices regnant.'' --Swift.