cursor

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Computer Science A bright, usually blinking, movable indicator on a display, marking the position at which a character can be entered, corrected, or deleted.

Century Dictionary and Cyclopedia

1. n. Any part of a mathematical instrument that slides backward and forward upon another part, as the piece in an equinoctial ring-dial that slides to the day of the month, or the point that slides along a beam-compass, etc.
2. n. In medieval universities, a bachelor of theology appointed to assist a master by reading to the class the text of the sentences, with explanations of the meaning, sentence by sentence. See bachelor, 2.
3. n. Same as Cursorius.

Wiktionary

1. n. A part of any of several scientific instruments that moves back and forth to indicate a position
2. n. graphical user interface A moving icon or other representation of the position of the pointing device.
3. n. graphical user interface 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. n. databases 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. n. programming A design pattern in object oriented methodology in which a collection is iterated uniformly, also known as the iterator pattern.
6. v. intransitive, computing To navigate by means of the cursor keys.

GNU Webster's 1913

1. n. Any part of a mathematical instrument that moves or slides backward and forward upon another part.

WordNet 3.0

1. n. (computer science) indicator consisting of a movable spot of light (an icon) on a visual display; moving it allows the user to point to commands or screen positions