plural demarcations
Synonyms of demarcation
1
: the marking of the limits or boundaries of something : the act, process, or result of demarcating something
the demarcation of property lines
2
: something that marks or constitutes a boundary
a demarcation line
: a marked or perceived distinction between one area, category, etc., and another
The ability to test a theory against physical evidence … has provided a useful demarcation between science and pseudoscience.Norriss S. Hetherington
Certainly no clear line of demarcation has as yet been drawn between species and sub-species—that is, the forms which in the opinion of some naturalists come very near to, but do not quite arrive at the rank of species.Charles Darwin
There has been much chatter in recent seasons about the great gender crossover, that deliberate erosion on the runways of a once-rigid demarcation between conventionally feminine and masculine clothes.Elizabeth Paton
… the continued presence in the modern imagination of a sharp demarcation between public and private space.AAG Abstracts

Examples of demarcation in a Sentence

the lines of demarcation between art and entertainment are often blurry
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Dokoupil had to work out kinks on air, in real time, and the program’s overall audience still rests below 4 million, a demarcation point for CBS News management in the past. Brian Steinberg, Variety, 3 Aug. 2026 The statement reiterated Israel’s refusal to pull troops back to the original demarcation line defined by the October 2025 ceasefire agreement, which the Israeli military has since pushed farther into Gaza. Tal Shalev, CNN Money, 3 Aug. 2026 Former Kentucky forward Jayden Quaintance, who was selected 20th overall in June’s NBA Draft, wound up being the de facto line of demarcation in that respect. Brendan Marks, New York Times, 25 July 2026 Her life with Kelly carries a hard line of demarcation between the before and the after. Mark Leibovich, The Atlantic, 20 July 2026 See All Example Sentences for demarcation

Word History

First Known Use

1728, in the meaning defined at sense 1

Time Traveler
The first known use of demarcation was in 1728

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Cite this Entry

“Demarcation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/demarcation. Accessed 11 Aug. 2026.

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