1. 
   Tombolo
   (1) Coastal formation of beach material developed by refraction, DIFFRACTION and LONGSHORE DRIFT to form a 'neck' connecting a COAST to an offshore island or BREAKWATER (see also salient). (2) (SMP) A causeway-like ACCRETION SPIT that connects an offshore rock or island to the main shore, or to anot...
   Found op http://www.ecy.wa.gov/programs/sea/swces/products/glossary.htm
   
   
2. 
   tombolo
   one or more sandbars or spits that connect an island to the mainland. A single tombolo may connect a tied island to the mainland, as at Marblehead, ...
   Found op http://www.britannica.com/eb/a-z/t/60
   
   
3. 
   Tombolo
   A tombolo, from the Italian tombolo, derived from the Latin tumulus, meaning `mound,` and sometimes translated as ayre (Old Norse eyrr, meaning `gravel beach`), is a deposition landform in which an island is attached to the mainland by a narrow piece of land such as a spit or bar. Once attached, th...
   Found op http://en.wikipedia.org/wiki/Tombolo
   
   
4. 
   Tombolo
   A coastal feature that forms when a belt sand and/or gravel is deposited between an island and the mainland. This feature is above sea-level for most of the time.
   Found op http://www.physicalgeography.net/physgeoglos/t.html
   
   

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