headshell

Short definition from Wiktionary

Noun

1. 1
   A component of a record player that is attached to the end of a turntable arm. The cartridge is bolted to it.
2. 2
   A component of a Sun server, used to connect a console between two Sun machines. It is made up of a DB-25 male connector with a normal Cat-5 ethernet cable connecting to another DB-25 male connector.