(in a hydrographic survey) a curved surface representing one phase of a tide, usually mean low water, taken as a datum level.
BEAT THE DOLDRUMS WITH THIS WORD OF THE DAY QUIZ!
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Question 1 of 7
What does “Indigenous” mean?
Words nearby tidal datum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020