柯林斯詞典square root (square roots) 1. N-COUNT The square root of a number is another number which produces the first number when it is multiplied by itself. For example, the square root of 16 is 4. 平方根 返回 square root劍橋詞典The square root of a particular number is the number that was multiplied by itself to reach that number 平方根 The square root of 49 is 7. 49的平方根是7。 返回 square root