1. a large ape with long reddish-brown hair and long arms, found in the forests of Borneo and Sumatra

Examples

• The orangutan swung gracefully from branch to branch.
• Orangutans are highly intelligent primates that use tools.
• Deforestation threatens the orangutan’s natural habitat.
• We watched the orangutan build a nest in the treetops.
• The zoo’s orangutan exhibit features a large climbing structure.
• Baby orangutans stay with their mothers for several years.