from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A high plateau, as in the Andean regions of Bolivia, Peru, and Argentina.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A high plateau.
American Spanish : Latin altus, high; see al-2 in Indo-European roots + Latin plānum, plain; see plane1.(American Heritage® Dictionary of the English Language, Fourth Edition)
From American Spanish from Latin altus + planum - high plain (Wiktionary)