stylus

Short definition from Wiktionary

Noun

1. 1
   An ancient writing implement consisting of a small rod with a pointed end for scratching letters on clay, wax-covered tablets or other surfaces, and a blunt end for obliterating them.
2. 2
   An ancient writing implement consisting of a small rod with a pointed end for scratching letters on clay, wax-covered tablets or other surfaces, and a blunt end for obliterating them: A small implement with a pointed end used for engraving and tracing.
3. 3
   An ancient writing implement consisting of a small rod with a pointed end for scratching letters on clay, wax-covered tablets or other surfaces, and a blunt end for obliterating them: A small device resembling a pen used to input handwritten text or drawings directly into an electronic device with a touch-sensitive screen.
4. 4
   A hard-pointed pen-shaped instrument for marking on stencils used in a mimeograph machine.
5. 5
   A hard point, typically of diamond or sapphire, following a groove in a phonograph and transmitting the recorded sound for reproduction.
6. 6
   A hard point, typically of diamond or sapphire, following a groove in a phonograph and transmitting the recorded sound for reproduction: A pointed device formerly used to produce a groove in a record when recording sound.
7. 7
   A tool for making small dots on a piece of heavy paper, used to produce Braille writing for the blind by hand.
8. 8
   Synonym of style.