n. pl. al·ti·pla·nos A high plateau, as in the Andean regions of Bolivia, Peru, and Argentina. [American Spanish : Latin altus, high; see al-2 in the Appendix of Indo-European roots + Latin plānum, plain; see PLANE1.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.