Definition of viceroy

• prep. - The governor of a country or province who rules in the name of the sovereign with regal authority, as the king's substitute; as, the viceroy of India.
• prep. - A large and handsome American butterfly (Basilarchia, / Limenitis, archippus). Its wings are orange-red, with black lines along the nervures and a row of white spots along the outer margins. The larvae feed on willow, poplar, and apple trees.