regnant

from WordNet (r) 3.0 (2006)
regnant
    adj 1: exercising power or authority [syn: {regnant},
           {reigning}, {ruling}]
from The Collaborative International Dictionary of English v.0.48
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.
      [1913 Webster]

   2. Having the chief power; ruling; predominant; prevalent. "A
      traitor to the vices regnant." --Swift.
      [1913 Webster]
from Bouvier's Law Dictionary, Revised 6th Ed (1856)
REGNANT. One having authority as a king; one in the exercise of royal 
authority.
from Moby Thesaurus II by Grady Ward, 1.0
55 Moby Thesaurus words for "regnant":
      ascendant, at the head, average, besetting, boss, chief,
      commanding, common, controlling, current, dominant, epidemic,
      general, governing, head, hegemonic, hegemonistic, in ascendancy,
      in charge, in chief, in the ascendant, leading, master, normal,
      on the throne, ordinary, overbearing, pandemic, paramount, popular,
      predominant, predominate, predominating, prepollent, preponderant,
      preponderate, prepotent, prevailing, prevalent, rampant,
      regulating, regulative, regulatory, reigning, rife, routine,
      ruling, running, sovereign, standard, stereotyped, supreme,
      swaying, usual, widespread
antiflux / dictionary / regnant
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