A sea cliff is a nick or scarp resulting from wave erosion. Because this location marks the limit of wave action, the sea cliff is the boundary between the shore (seaward side) and the coast (landward side).. A sea cliff is a steep coastal slope created by the erosive power of waves at its base (Bird, 1969; Zenkovich, 1967). The spectacular sea cliffs on the north coast of Molokai, Hawaii, which rise more than one kilometer above the Pacific Ocean, are thought to be the highest in the world.
Define Sea cliff. Sea cliff synonyms, Sea cliff pronunciation, Sea cliff translation, English dictionary definition of Sea cliff. n. A high, steep, or overhanging.. Sea cliffs The most widespread landforms of erosional coasts are sea cliffs. These very steep to vertical bedrock cliffs range from only a few metres high to hundreds of metres above sea level. Their vertical nature is the result of wave-induced erosion near sea level and the subsequent collapse of rocks at higher elevation.