I. -sə(r), -ˌsȯ(ə)r, -ȯ(ə) noun
( -s )
Etymology: obsolete English, runner, from Middle English, from Latin, from cursus (past participle of currere to run) + -or — more at current
: a part of a mathematical instrument that moves back and forth upon another part
II. noun
1. : a visual cue (as a flashing rectangle) on a video display that indicates position especially for entry of data or manipulation of information
2. : a usually transparent movable object with cross hairs used to mark position on a tablet for entry of graphic data into a computer