- of, on, or along the shore, esp. a seashore
- designating or of the intertidal ecological zone along the shore
Origin of littoralClassical Latin litoralis from litus (gen. litoris), seashore, coast, probably from Indo-European an unverified form leitos from base an unverified form lei-, to flow from source Welsh lli, sea, flood
- A coastal region; a shore.
- The region or zone between the limits of high and low tides.
Origin of littoralLatin lītorālis from lītus lītor- shore N., from Italian littorale from Latin lītorālis
Specifically refers to the water at the shore, rather than the land, particularly in the phrase littoral zone.
From Late Latin littoralis, from litoris (genitive of litus). The doubled 't' is a late medieval addition, and the more classical litoral is also sometimes found.