Stylus \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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Stylus \Sty"lus\, n. [L. stylus, or better stilus.]

An instrument for writing. See Style, n., 1.

Source: Webster's Revised Unabridged Dictionary (1913)