Tidal cycle
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7-4-090
Alternative term: Tidal wave (USA)
Predictable variation in the height of the sea level due to the effects of the moon, and to a lesser extent the sun, influenced by the rotation of the earth.
Note: A rising tide is called a flood tide and a falling tide an ebb tide.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)