Plural of cordillera; multiple mountain chains or systems.
Spanish plural of 'cordillera,' used in English primarily when discussing South American geography, where multiple major cordillera systems exist parallel to each other.
South America's Andes actually consists of multiple parallel cordilleras—the Western, Central, and Eastern cordilleras—running side by side, which creates incredibly diverse ecosystems from tropical valleys to icy peaks within just a few miles!
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