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Dictionary

U-val•ue

Pronunciation: (yOO'val"yOO), [key]
—n.
a measure of the flow of heat through an insulating or building material: the lower the U-value, the better the insulating ability. Cf. R-value.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

Uvalde

uvarovite

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