stylus
noun
[ ˈstʌɪləs ]
• a hard point, typically of diamond or sapphire, following a groove in a record and transmitting the recorded sound for reproduction.
• an ancient writing implement, consisting of a small rod with a pointed end for scratching letters on wax-covered tablets, and a blunt end for obliterating them.
Origin:
early 18th century (as a modern Latin term in botany: see style): erroneous spelling of Latin stilus .