1. a wild South American mammal related to the llama, with a thick brownish coat and long neck

Examples

• The guanaco roamed freely across the Patagonian plains.
• Guanacos are the wild ancestors of domesticated llamas.
• We spotted a herd of guanacos grazing in the Andes foothills.
• The guanaco’s thick coat protects it from harsh mountain weather.
• Conservation efforts help protect guanaco populations in Chile and Argentina.
• A young guanaco stayed close to its mother in the grasslands.