Etymology

Noun

1. A part of any of several scientific instruments that moves back and forth to indicate a position
2. A moving icon or other representation of the position of the pointing device.
3. An indicator, often a blinking line or bar, indicating where the next insertion or other edit will take place. Also referred to as "the caret".
4. A reference to a row of data in a table, which moves from row to row as data is retrieved by way of it.
5. A design pattern in object oriented methodology in which a collection is iterated uniformly, also know as the "Iterator" pattern.