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English Dictionary - With Multi-Lingual Search Definitions quadratic mean noun  (mathematics) A type of average, calculated as the square root of the mean of the squares, ie. <math>Q = \sqrt { x_1^2 + x_2^2 + ... + x_n^2 \over n }</math>. Translations:  French: moyenne quadratique(fr) Etymology: Quadratic in the phrase refers to the squaring on the terms.        Find:   Words Starting With:   Words Ending With:   Words Containing:   Words That Match:    Translate Into:    Dutch   French   German    Italian   Spanish     Show 51015202550 results per page. Enter your search terms Submit search form   Web www.allwords.com Browse the Dictionary A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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