lit·to·ral 
(lĭtər-əl)
(lĭtər-əl)adj.
Of or on a shore, especially a seashore: a littoral property; the littoral biogeographic zone.
n.
1. A coastal region; a shore.
2. The region or zone between the limits of high and low tides.
[Latin lītorālis, from lītus, lītor-, shore. N., from Italian littorale, from Latin lītorālis.]