1. a small South American monkey with a long tail and tufted ears
Usage: from French

Examples

• The ouistiti swung gracefully from branch to branch in the rainforest canopy.
• At the zoo, children were delighted to watch the playful ouistiti family.
• The ouistiti’s distinctive ear tufts make it easy to identify among other small primates.
• Researchers studied the ouistiti’s social behavior in its natural habitat.
• The ouistiti feeds primarily on tree sap, insects, and small fruits.