tidemark

noun
tide·​mark | \ ˈtīd-ˌmärk How to pronounce tidemark (audio) \

Definition of tidemark

1a : a high-water or sometimes low-water mark left by tidal water or a flood
b : a mark placed to indicate this point
2 : the point to which something has attained or below which it has receded the tidemark of tolerance has risenNew Republic

First Known Use of tidemark

1799, in the meaning defined at sense 1a

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The first known use of tidemark was in 1799

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Dictionary Entries Near tidemark

tide lock

tidemark

tide mill

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Cite this Entry

“Tidemark.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tidemark. Accessed 19 May. 2022.

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