demarcate

verb

de·​mar·​cate di-ˈmär-ˌkāt  ˈdē-ˌmär- 

demarcated; demarcating

transitive verb

1

: delimit

a plot of land demarcated by a low stone wall

2

: to set apart : distinguish

demarcate teachers as mentor, master and model teachers based on their level of education

—Shanay Cadette

Did you know?

It’s reasonable to assume that demarcate inspired the noun demarcation—many a noun has been formed by adding the suffix -ion to an existing verb. But in this case you'd also be wrong; demarcation came first, with the verb demarcate following as a back-formation. We can ultimately thank Spanish for both: the Spanish noun demarcación (from demarcar, "to delimit") was used in 1493 to name a meridian dividing New World territory between Spain and Portugal. (A Spanish-born pope chose a meridian that favored Spain greatly.) Centuries later, English speakers began calling this boundary the "line of demarcation," and eventually applied that phrase to other dividing lines as well. By the early 19th century, demarcation had been verbified to create demarcate.

Synonyms

• bound
• circumscribe
• define
• delimit
• demark
• limit
• mark (off)
• terminate

Examples of demarcate in a Sentence

Recent Examples on the Web

The United States benefits from diplomatic engagement with China that allows both sides to clarify their positions, demarcate redlines, and defuse tensions. —Tyler Jost, Foreign Affairs, 27 June 2024

There was just one significant difference: those in the NDE group more frequently experienced reaching a border demarcating a point of no return. —Rachel Nuwer, Scientific American, 14 May 2024

See, for instance, the 300-year-old wooden gate that once demarcated the original estate. —Cnt Editors, Condé Nast Traveler, 13 Dec. 2023

In the quad near Doheny Library, where the main-stage commencement traditionally happens, the lawns were instead sliced by fences that demarcated lounges and tables for specific graduation events. —Angie Orellana Hernandez, Los Angeles Times, 10 May 2024

Word History

Etymology

back-formation from demarcation, from Spanish demarcación, from demarcar to delimit, from de- + marcar to mark, probably from Italian marcare, of Germanic origin; akin to Old High German marha boundary — more at mark

First Known Use

1816, in the meaning defined at sense 1

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Kids Definition

demarcate

verb

de·​mar·​cate di-ˈmär-ˌkāt  ˈdē-ˌmär- 

demarcated; demarcating

1

: to mark the limits or boundaries of

2

: to set apart : distinguish sense 4

demarcation

ˌdē-ˌmär-ˈkā-shən 

noun

Medical Definition

demarcate

transitive verb

de·​mar·​cate di-ˈmär-ˌkāt  ˈdē-ˌ 

demarcated; demarcating

1

: to mark or determine the limits of

2

: to set apart clearly or distinctly as if by definite limits or boundaries

demarcation noun

also demarkation

ˌdē-ˌmär-ˈkā-shən