noun, plural tom·bo·los.

a sand bar connecting an island to the mainland or to another island.

Origin of tombolo

1899; < Italian < Latin tumulus mound. See tumulus Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for tombolo

sandbar, shoal, sandbank, tombolo

British Dictionary definitions for tombolo


noun plural -los

a narrow sand or shingle bar linking a small island with another island or the mainland

Word Origin for tombolo

C20: from Italian, from Latin tumulus mound; see tumulus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for tombolo

1899, from Italian tombolo "sand dune," from Latin tumulus "hillock, mound" (see thigh).

Online Etymology Dictionary, © 2010 Douglas Harper

tombolo in Science



A sand or gravel bar that connects an island to the mainland or to another island.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.