iterator

n. (Computers) object or routine for accessing items from an array

In computer science, an iterator is an object which allows a programmer to traverse through all the elements of a collection, regardless of its specific implementation. An iterator is sometimes called a cursor, especially within the context of a database.
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<programming> An object or routine for accessing items from a list, array or stream one at a time.
By extension, the term can be used for an object or routine for accesing items from any data structure that can be viewed as a list. For example, a traverser is an iterator for tree-shaped data structures.
(2001-10-04)