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n. pl. te·puis
Any of numerous isolated, flat-topped mountains in the Guiana highlands of southeastern Venezuela, usually consisting of Precambrian sandstone and often towering over surrounding rainforests by up to 1,000 meters (3,280 feet).
[American Spanish, from Pemón (Cariban language of Venezuela) tëpui, second element in names of tepuis such as Auyantepui : tëk, tëpu-, stone (from Proto-Cariban tôpu-) + -i, suff. added to a noun indicating its possession by a possessor (from Proto-Cariban -rï).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.