noun. A large African monkey (Theropithecus gelada) of Ethiopia that resembles a baboon but has a bright patch of naked red skin on the chest and a large broad mane covering the shoulders. The gelada has an opposable thumb that it uses to gather grass seeds to eat.

noun. An Abyssinian baboon, Cynocephalus or Cercopithecus or Theropithecus gelada, or Gelada rueppelli.

noun. [capitalized] [NL.] A generic name of this animal: synonymous with Theropithecus.

noun. A baboon (Gelada Ruppelli) of Abyssinia, remarkable for the length of the hair on the neck and shoulders of the adult male.

noun. a species of Old World monkey, scientific name Theropithecus gelada, distinguished from baboons by the bright patch of skin on their chests.

"The park is the refuge for threatened animals such as gelada baboon, Simen fox and Walia ibex, a goat species endemic to Simen Mountains."