Pronunciation: (ī'bis), [key]
—pl. i•bis•es, (esp. collectively) i•bis.
1. any of several large wading birds of the family Threskiornithidae, of warm temperate and tropical regions, related to the herons and storks, and characterized by a long, thin, downward-curved bill. Cf. sacred ibis.
2. any of certain similar birds belonging to the stork family Ciconiidae, esp. the wood stork, Mycteria americana.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.