first occurrence
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“If the radiologist had carefully reviewed both breast mammograms at the first occurrence, I would have skipped the lumpectomy and radiation and gone straight for bilateral mastectomies.”
From The Wall Street Journal ● May 4, 2026
Federal biologists on Thursday confirmed the presence of a lethal fungus known as white-nose syndrome in Washington, the first occurrence in western North America of the disease that has killed roughly 7 million bats.
From Los Angeles Times ● Oct. 31, 2024
Also alarming was the California Fivespined Ips beetle’s first occurrence in Western Washington.
From Seattle Times ● May 19, 2024
Those studied were at increased risk for cardiovascular disease and were taking aspirin to prevent the first occurrence of a heart attack or stroke.
From Science Daily ● Feb. 27, 2024
That is, the response to "sharp" is a nascent or incipient form of a response which at the time of its first occurrence was the expression of a maladaptation.
From Creative Intelligence Essays in the Pragmatic Attitude by Bode, Boyd H.