lower limit

from the GNU version of the Collaborative International Dictionary of English.

• noun the limit on the lower (or southernmost) side of something.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun analysis The lower limit of a sequence of real numbers is the real number which can be found as follows: remove the first term of the sequence in order to obtain the "first subsequence." Then remove the first term of the first subsequence in order to obtain the "second subsequence." Repeat the removal of first terms in order to obtain a "third subsequence," "fourth subsequence," etc. Find the infimum of each of these subsequences, then find the supremum of all of these infimums. This supremum is the lower limit.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the limit on the lower (or southernmost) side of something
• noun the smallest possible quantity