Stylus

1. n. A pen-shaped pointing device used to specify the cursor position on a graphics tablet.
2. n. An instrument for writing. See Style, n., 1.
3. n. That needle-shaped part at the tip of the playing arm of phonograph which sits in the groove of a phonograph record while it is turning, to detect the undulations in the phonograph groove and convert them into vibrations which are transmitted to a system (since 1920 electronic) which converts the signal into sound; also called needle. The stylus is frequently composed of metal or diamond.
4. n. The needle-like device used to cut the grooves which record the sound on the original disc during recording of a phonograph record.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.