||Sty"lus (?), n. [L. stylus, or better stilus.] An instrument for writing. See Style, n., 1.

||Sty"lus, n. In a photograph, a pointed piece which is moved by the vibrations given to the diaphragm by a sound, and produces the indented record; also, a pointed piece which follows the indented record, vibrates the diaphragm, and reproduces the sound.

||Sty"lus (?), n. [L. stylus, or better stilus.] An instrument for writing. See Style, n., 1.

||Sty"lus, n. In a photograph, a pointed piece which is moved by the vibrations given to the diaphragm by a sound, and produces the indented record; also, a pointed piece which follows the indented record, vibrates the diaphragm, and reproduces the sound.

• A sharp stick used in ancient times for writing in clay tablets; a sharp tool for engraving.
  
• A phonograph needle.