Nearby Words

U-value

[yoo-val-yoo]

U-val·ue

[yoo-val-yoo]
noun
a measure of the flow of heat through an insulating or building material: the lower the U-value, the better the insulating ability.
Compare R-value.


Origin:
1945–50; U, symbol for internal energy
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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U-value is always a great word to know.
So is lollapalooza. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
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