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UL

American  
  1. Underwriters' Laboratories (used especially on labels for electrical appliances approved by this nonprofit safety-testing organization).


Example Sentences

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If signed, the balcony solar bill will go into effect once systems have been certified as safe for use in the U.S. by a nationally recognized testing laboratory like UL Solutions.

From Los Angeles Times ● Aug. 31, 2026

UL Solutions said the deal would expand its global footprint, with the group gaining 44 labs including seven in the U.S.

From The Wall Street Journal ● Apr. 14, 2026

The groundbreaking study, led by researchers at UL in collaboration with colleagues at the University of Valencia, has demonstrated a method of generating electricity using low-grade heat recovered from lignin-derived membranes.

From Science Daily ● Feb. 13, 2024

"These fires are not so much traditional fires. They're explosive and there's a lot of gas involved," explains Robert Slone, the senior vice president and chief scientist for UL Solutions, a safety science company.

From BBC ● Feb. 8, 2024

Look for the UL label when you buy cords or appliances.

From Electricity for the 4-H Scientist Idaho Agricultural Extension Service Bulletin 396, June, 1962 by Eric B. Wilson

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