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Wordswarms From Years PastAdjacent WordsU septentrionalisU troile U urens U, u U-boat u-drive U-shaped u-turn U. S. Air Force U. S. Army U. S. Army Special Forces U. S. Coast Guard U. S. Code u.c. U.K. U.S. U.S. Army Criminal Investigation Laboratory U.S. Congress U.S. Constitution U.S. government U.S. House U.S. House of Representatives Full-text Search for "U-value" 2138 |
U-value definitions
Merriam Webster'snoun Etymology: unit Date: 1949 a measure of the heat transmission through a building part (as a wall or window) or a given thickness of a material (as insulation) with lower numbers indicating better insulating properties — compare R-value |