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of unknown origin
idiom
—used to say that the source or cause of something is not known
a disease of unknown origin
Examples of of unknown origin in a Sentence
Recent Examples on the Web
Three of the men are citizens of Colombia, a fourth is from Mexico and the fifth is of unknown origin, according to the Oakland County Prosecutor’s Office.
—Bill Laytner, Detroit Free Press, 6 Aug. 2024
Genetic testing, however, led to a faster diagnosis for infants with diseases of unknown origin, with a decrease in the cost of care at nearly $15,000 per infant.
—Jodie Gillon, Hartford Courant, 19 July 2024
With both sides on high alert, a cyberattack of unknown origin is launched against Russian early warning systems, simulating an incoming air attack by NATO against air and naval bases in Kaliningrad.
—Ernest J. Moniz, Foreign Affairs, 6 Aug. 2019
The mirrored structure of unknown origin emerged without warning on a hill overlooking the northern Colorado town of Bellvue, about an 8-mile drive northwest from Fort Collins, multiple outlets reported.
—Brooke Baitinger, Idaho Statesman, 27 June 2024
In early March, Dr. Elisha Frye, an assistant professor of practice at Cornell's Department of Population Medicine and Diagnostic Sciences, received a call about an outbreak among Texas dairy herds of a disease of unknown origin.
—Eduardo Cuevas, USA TODAY, 3 Apr. 2024
Devi reportedly relayed a prophecy of unknown origin — the rock would break apart in one of two ways: Down the middle, humanity was facing extinction.
—Alex Wigglesworth, Los Angeles Times, 23 June 2024
Sheriff's deputies knocked on the doors of several homes to advise them to leave as a wildfire of unknown origin advanced.
—Mary Jo Pitzl, The Arizona Republic, 22 May 2024
This would create a public awareness of the necessity to take proactive steps to protect one’s health when discovering an insect/spider bite of unknown origin.
—For Carroll County Times, Baltimore Sun, 28 Apr. 2024
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Dictionary Entries Near of unknown origin
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“Of unknown origin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/of%20unknown%20origin. Accessed 8 Nov. 2024.
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