from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Reigning; ruling: a queen regnant.
- adj. Predominant.
- adj. Widespread; prevalent.
from the GNU version of the Collaborative International Dictionary of English
- adj. Exercising regal authority; reigning.
- adj. Having the chief power; ruling; predominant; prevalent.
from The Century Dictionary and Cyclopedia
- Reigning; exercising regal authority by hereditary right.
- Ruling; predominant; prevalent; having the chief power.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. exercising power or authority
Probably from Middle English, a sovereign, from Old French, from Latin rēgnāns, rēgnant-, present participle of rēgnāre, to reign, from rēgnum, reign; see reign.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle French regnant and its source, the present participle of Latin regnāre. (Wiktionary)