One of the mysteries of the English language finally explained.
1A synthetic crystalline compound used in making pesticides and fungicides, and formerly as an anesthetic.
- ‘Rats of both sexes were anaesthetized with urethane.’
- ‘It's a transparent kayak, made of clear urethane and carbon kevlar.’
- ‘A new survey by the government's Food Standards Agency shows that many old single malts contain much higher concentrations of a dangerous chemical called ethyl carbamate than younger, blended whiskies.’
- ‘When the Sunday Herald revealed in May that single malt whiskies were contaminated with high levels of a cancer-causing toxin, ethyl carbamate, the agency insisted that the health risks were minimal.’
- 1.1short for polyurethane
- ‘Cody carved them out of urethane and polystyrene foam, coated them with primer or plaster and painted them blue, pink and white.’
- ‘The two-year-old inquiries, which originally focused on certain chemicals used to manufacture rubber, have expanded to include other products, including urethane chemicals.’
- ‘To do it, he invented a compound to make a solid core and a special urethane blend for the cover.’
- ‘Liquid silicone in urethane bags was used extensively for breast implants until reports of leakage in 1992.’
- ‘Grant Hawk's knives can be had with a variety of options including exotic wood, urethane, Micarta or carbon fiber handles.’
- ‘These parts can substitute urethane, silicone, and rubber parts.’
- ‘Modified castor oil is now used in the production of urethane plastics, inks, rubber and other synthetic products.’
- ‘Weighing only 26 pounds and comprised of military-grade urethane and Carbon-Kevlar material, the kayak can be folded into the size of a backpack that fits right into the plane's baggage compartment.’
- ‘Polyurethane is a synthetic varnish that is oil based and urethane is its counter product that is water based.’
- ‘The pieces can be painted for better representation of what the final product will look like, or cast in silicon rubber to make copies in colored urethane.’
Mid 19th century: from French uréthane (see urea, ethane).
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