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marigraph

[mar-i-graf, -grahf]
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noun
  1. a device that automatically registers the rise and fall of the tide.
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Also mareograph.

Origin of marigraph

1855–60; < Latin mari- (combining form of mare sea) + -graph
Related formsmar·i·graph·ic [mar-i-graf-ik] /ˌmær ɪˈgræf ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for marigraph

marigraph

noun
  1. a gauge for recording the levels of the tides
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Word Origin

from Latin mare sea + -graph
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012