What is marigraph?

Answer

( ′mar·ə′graf ) (engineering) A self-registering gage that records the heights of the tides.
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Q&A Related to "What is marigraph?"
For registering the height of the tide at every instant, hydrographic services
http://www.chacha.com/question/what-does-a-marigra...
(Earth Sciences / Physical Geography) a gauge for recording the levels of the tides [from Latin mare sea + -graph]
http://www.thefreedictionary.com/marigraph
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