(mathematical analysis) Any expression that represents the addition a countably infinite number of ordered summands, often explicitly indexed by the positive or nonnegative integers.

(set theory, of a set) That is both countable and infinite; having the same cardinality as the set of natural numbers; formally, such that a bijection exists from ℕ to the set.

(logic) A regress into an infinite sequence of propositions in an attempt to found the truth of the proposition Pᵢ on the truth of the proposition Pᵢ₊₁.

plural of infinite recursion

(programming) A loop which continues indefinitely.

plural of infinite loop

(mathematics, in optimization programming) Involving a finite number of variables but an infinite number of constraints, or vice versa.

A diabolo trick where a large number of suicides are performed consecutively.

plural of infinite suicide

(Internet) A web design technique that loads more content as the user scrolls towards the end of the loaded content. This prevents the browser scroll bar from scrolling to the bottom of the page, causing the page to grow with additional content instead, until there are no more results to be displayed.