Look up: tombolo

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 another island. See Figure 5.
   Found on http://www.csc.noaa.gov/text/glossary.ht
   
   
2. 
   Tombolo
   A `tombolo` is a deposition landform such as a spit or bar which forms a narrow piece of land between an island or offshore rock and a mainland shore, or between two islands or offshore rocks. They usually form because the island causes wave refraction, depositing sand and shingle moved by longshore drift in each direction around the island where the waves meet. Eustatic sea level rise may also contribute to accretion as material is pushed up wit...
   Found on http://en.wikipedia.org/wiki/Tombolo
   
   
3. 
   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 on http://www.britannica.com/eb/a-z/t/60
   
   
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 on http://www.physicalgeography.net/physgeo