least upper bound
noun Mathematics.
an upper bound that is less than or equal to all the upper bounds of a particular set. 3 is the least upper bound of the set consisting of 1, 2, 3. Abbr.: lub
Nearby words
least resistance, line of, least sandpiper, least shrew, least significant digit, least squares, least upper bound, least weasel, least-worst, leastways, leastwise, leat
Also called supremum.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019