释义 |
noun Mathematics.(between two numbers a and b) a number x for which a/x = x/b: The number 3 is a mean proportional between 1 and 9. Origin of mean proportionalFirst recorded in 1565–75 Words nearby mean proportionalmean line, meanly, meanness, mean noon, mean planet, mean proportional, means, mean sea level, Means grass, means of production, mean solar day Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |