nounWord forms: plural ˈtumuˌli (ˈtumjuˌlaɪ
) or ˈtumuluses
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'tumulus'L, mound, hillock, akin to tumere: see tumor