Any of four keys on a computer keyboard, electronic control pad, or touch screen, which are marked with an arrow or arrowhead and move the cursor around a screen in the direction indicated by the arrow.
Origin
1960s.
Definition of arrow key in US English:
arrow key
noun
Computing
Any of four keys on a computer keyboard, electronic control pad, or touch screen, which are marked with an arrow or arrowhead and move the cursor around a screen in the direction indicated by the arrow.