A person who insists upon accuracy, especially in verbal and written communication. A person who does not permit use of one's best guess in lieu of actual fact. A person with a low tolerance for creative license outside of artistic endeavors.
"It's two degrees outside."

"It is precisely thirty-six degrees Fahrenheit."

"I'm just saying it's cold out, quit being such an accurist!"
by jre503 February 3, 2010
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