from
The Collaborative International Dictionary of English v.0.48
Viceroy \Vice"roy\, n. [F. vice-roi; pref. vice- in the place of
(L. vice) + roi a king, L. rex. See {Vice}, prep. and Royal.]
1. 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.
[1913 Webster]
2. (Zool.) A large and handsome American butterfly
({Basilarchia archippus} syn. {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.
[1913 Webster]