Demarcator

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    One who or that which demarcates.

    "The event [the assassination of John F. Kennedy] was a demarcator. It was the last major public event to come to us in black and white. The urban riots and the Vietnam war, coming right along, were brought to us in living color."

Example

More examples

"The event [the assassination of John F. Kennedy] was a demarcator. It was the last major public event to come to us in black and white. The urban riots and the Vietnam war, coming right along, were brought to us in living color."

Etymology

From demarcate + -or.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.