柯林斯詞典absolute value 1. N the positive real number equal to a given real but disregarding its sign. Written | x |. Where r is positive, | r | = r = | –r | 絕對值[maths] 返回 absolute value劍橋詞典the distance from zero of a number on a number line 絕對值 （即數(shù)軸上一個實數(shù)距離原點的距離） 返回 absolute value